Stellar Water Point

ASP.NET MVC/jQuery Application: Stellar Water Point

Starting the Project

Introduction

A water distribution company delivers water to homes and commercial buildings. In this exercise, we will create an application for a fictitious company that distributes and sells water. This version of the application creates and stores records in XML.

Practical Learning: Introducing XML Node Maintenance

Start Microsoft Visual Studio
On the Visual Studio 2022 dialog box, click Create a New Project:
In the Create a New Project dialog box, in the languages combo box, select C#:
In the list of projects templates, click ASP.NET Web Application (.NET Framework):
Click Next
Change the Project Name to StellarWaterPoint1.
Set the location to anything you want.
In the Framework combo box, select th highest version (.NET Framework 4.8)
Click Create
In the Create a New ASP.NET Web Application wizard page, click the MVC icon (optionally click the Configure For HTTPS check box to remove the check mark)
Click Create
In the Solution Explorer, right-click StellarWaterPoint1 -> Add -> New Folder
Type Images

Add the following photos to the Images folder:

In the Solution Explorer, expand Content
In the Content folder, double-click Site.css to open it

Change the document as follows:

/* Set padding to keep content from hitting the edges */
.body-content {
    margin-top: 15px;
    padding-left: 15px;
    padding-right: 15px;
}

/* Override the default bootstrap behavior where horizontal description lists 
   will truncate terms that are too long to fit in the left column 
*/
.dl-horizontal dt {
    white-space: normal;
}

/* Set width on the form input elements since they're 100% wide by default */
input,
select,
textarea {
    max-width: 280px;
}

.bordered        { border:           1px solid black; }
.bg-dark         { margin-bottom:    1rem !important;
                   background-color: #800000 !important;
                   font-family:      Garamond, Georgia, Cambria, 'Times New Roman', Times, serif; }

.display-4       { line-height:      0.825;           }

.encloser-small  { margin:           auto;
                   width:            400px;           }
.encloser-medium { margin:           auto;
                   width:            550px;           }
.encloser-large  { margin:           auto;
                   width:            600px;           }

.navbar-brand    { font-weight:      bold;
                   color:            #FFD800;         }
.navbar-brand:hover, .navbar-brand:focus {
                   font-weight:      bold;
                   color:            #FFFFFF;         }

.nav-link        { font-weight:      bold;
                    color:           yellow;          }
.nav-link        { font-weight:      bold;
                    color:           #FFFFFF;         }
.stellar         { font-weight:      bold;
                   text-decoration:  none;
                   color:            navy;
                   font-family:      Garamond, Georgia, Cambria, 'Times New Roman', Times, serif; }
a.stellar:focus  { color:            blue;            }

a.stellar:hover  { color:            maroon;
                   text-decoration:  underline;       }

.btn-stellar     { --bs-btn-color:                 #FFF;
                   --bs-btn-hover-color:           #000;
                   --bs-btn-disabled-color:        #000;
                   --bs-btn-bg:                    #800000;
                   --bs-btn-border-color:          #800000;
                   --bs-btn-hover-bg:              #E78A29;
                   --bs-btn-hover-border-color:    #E78A29;
                   --bs-btn-active-color:          #000000;
                   --bs-btn-active-bg:             #5E0707;
                   --bs-btn-active-border-color:   #E78A29;
                   --bs-btn-disabled-bg:           #800000;
                   --bs-btn-disabled-border-color: #800000; }

.common-font     { font-family:      Garamond, Georgia, Cambria, 'Times New Roman', Times, serif; }

Setting Up the Site

Practical Learning: Setting Up the Ŝite

In the Solution Explorer, expand Views
Under Views, expand Shared

Double-click _Layout.cshtml and change the document as follows:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>@ViewBag.Title - Stellar Water Point</title>
    @Styles.Render("~/Content/css")
    @Scripts.Render("~/bundles/modernizr")
</head>
<body>
    <nav class="common-font navbar navbar-expand-sm navbar-toggleable-sm navbar-dark bg-dark">
        <div class="container">
            @Html.ActionLink("Stellar Water Point", "Index", "Home", new { area = "" }, new { @class = "navbar-brand" })
            <button type="button" class="navbar-toggler" data-bs-toggle="collapse"
                    data-bs-target=".navbar-collapse" title="Toggle navigation" aria-controls="navbarSupportedContent"
                    aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="collapse navbar-collapse d-sm-inline-flex justify-content-between">
                <ul class="navbar-nav flex-grow-1">
                    <li>@Html.ActionLink("Water Bills", "Index", "WaterBills", new { area = "" }, new { @class = "nav-link" })</li>
                    <li>@Html.ActionLink("Customers", "Index", "Customers", new { area = "" }, new { @class = "nav-link" })</li>
                    <li>@Html.ActionLink("Water Meters", "Index", "WaterMeters", new { area = "" }, new { @class = "nav-link" })</li>
                    <li>@Html.ActionLink("About", "About", "Home", new { area = "" }, new { @class = "nav-link" })</li>
                    <li>@Html.ActionLink("Contact", "Contact", "Home", new { area = "" }, new { @class = "nav-link" })</li>
                </ul>
            </div>
        </div>
    </nav>
    <div class="container body-content">
        @RenderBody()
        <hr />
        <footer>
            <p class="common-font text-center">&copy; 2011-@DateTime.Now.Year - Stellar Water Point</p>
        </footer>
    </div>

    @Scripts.Render("~/bundles/jquery")
    @Scripts.Render("~/bundles/bootstrap")
    @RenderSection("scripts", required: false)
</body>
</html>

In the Solution Explorer, expand Views, and expand Home
Below Home, double-click Index.cshtml

Change the document as follows:

@{
    ViewBag.Title = "Home";
}

<main class="common-font">
    <section class="row text-center" aria-labelledby="aspnetTitle">
        <h1 id="title" class="display-4 fw-bold">Stellar Water Point</h1>
        <p class="lead">Stellar Water Point is a community-based company that commercially distributes water to customers in need. Our water process is socially responsible and community oriented.</p>
        </p>
    </section>

    <div class="row">
        <section class="col-md-4" aria-labelledby="gettingStartedTitle">
            <div class="card mb-4 box-shadow">
                <img class="bordered card-img-top" src="../Images/WaterBills.png" alt="Water Bills">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/WaterBills/Index">Water Bills</a></h5>
                    <hr />
                    <p class="card-text">Water bills are processed in a timely and responsible manner, applying only the strictest, regular, and lawful rules.</p>
                </div>
            </div>
        </section>
        <section class="col-md-4" aria-labelledby="librariesTitle">
            <div class="card mb-4 box-shadow">
                <img class="bordered card-img-top" src="../Images/Customers.png" alt="Customers Accounts">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/Customers/Index">Customers Accounts</a></h5>
                    <hr />
                    <p class="card-text">Water bills are sent in a trimester-base to our customers who holds an account with us, all for good service.</p>
                </div>
            </div>
        </section>
        <section class="col-md-4" aria-labelledby="hostingTitle">
            <div class="card mb-4 box-shadow">
                <img class="bordered card-img-top" src="../Images/WaterMeter.png" alt="Water Meters">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/WaterMeters/Index">Water Meters</a></h5>
                    <hr />
                    <p class="card-text">We use industry standard water meters that are regularly government inspected for their accuracy and precision.</p>
                </div>
            </div>
        </section>
    </div>
    <div class="row">
        <section class="col-md-4" aria-labelledby="gettingStartedTitle">
            <div class="card mb-4">
                <img class="card-img-top bordered" src="../Images/Community.png" alt="Community Services">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/StellarWaterPoint">Community Services</a></h5>
                    <hr />
                    <p class="card-text">Stellar Water Point is a community-oriented company that works withn various local activities and authorities.</p>
                </div>
            </div>
        </section>
        <section class="col-md-4" aria-labelledby="librariesTitle">
            <div class="card mb-4">
                <img class="card-img-top bordered" src="../Images/LegalAffairs.png" alt="Legal Affairs">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/StellarWaterPoint">Legal Affairs</a></h5>
                    <hr />
                    <p class="card-text">Issues of regulations and government affairs are addressed here. This is available for employees, contractors, etc.</p>
                </div>
            </div>
        </section>
        <section class="col-md-4" aria-labelledby="hostingTitle">
            <div class="card mb-4">
                <img class="card-img-top bordered" src="../Images/Employees.png" alt="Employees Portal">
                <div class="card-body">
                    <h5><a class="nav-link text-dark fw-bold" href="/StellarWaterPoint">Employees Portal</a></h5>
                    <hr />
                    <p class="card-text">This is a central area form employees to access the company resources such as time sheets, payroll, benefits, etc.</p>
                </div>
            </div>
        </section>
    </div>
</main>

In the Solution Explorer, right-click the name of the project -> Add -> Folder
Type AppData and press Enter

Water Meters

Introduction

Utility companies use a device that measure what their customers consume. For example a water utility company installs water meters in residences and commercial buildings to find out how much water has been used. In this section, we will create a view that allows an employee to keep track of water consumption.

Practical Learning: Introducing Water Meters

In the Solution Explorer, right-click Controllers -> Add -> Controller...
In the middle frame of the Add Scaffold dialog box, click MVC 5 Controller With Read/Write Actions:
Click Add
In the name, replace Default with WaterMeters (to get WaterMetersController)
Click Add

Getting a List of Water Meters

Practical Learning: Getting a List of Water Meters

In the WaterMetersController class, change the Index() method as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;

namespace StellarWaterPoint12.Controllers
{
    public class WaterMetersController : Controller
    {
        // GET: WaterMeters
        public ActionResult Index()
        {
            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);
                }

                if (xdWaterMeters.DocumentElement.ChildNodes.Count > 0)
                {
                    ViewData["WaterMeters"] = xdWaterMeters.DocumentElement.ChildNodes;
                }
                else
                {
                    ViewData["WaterMeters"] = null;
                }
            }

            return View();
        }

        // GET: WaterMeters/Details/5
        public ActionResult Details(int id)
        {
            return View();
        }

        . . .
    }
}

In the WaterMetersController class, right-click anything from the Index() line to the closing curly bracket of the Index() method and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Index.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Water Meters";
}

<h2 class="fw-bold common-font text-center">Water Meters</h2>

<hr />

<table class="table table-striped common-font">
    <tr>
        <th class="fw-bold text-center">Water Meter Id</th>
        <th class="fw-bold">Meter #</th>
        <th class="fw-bold">Make</th>
        <th class="fw-bold">Model</th>
        <th class="fw-bold">Meter Size</th>
        <th>@Html.ActionLink("New Water Meter", "Create", new { area = "" }, new { @class = "stellar" })</th>
    </tr>

    @if (ViewBag.waterMeters != null)
    {
        foreach (System.Xml.XmlNode meter in ViewBag.WaterMeters as System.Xml.XmlNodeList)
        {
            <tr>
                <td class="text-center">@meter.FirstChild.InnerText</td>
                <td>@meter.FirstChild.NextSibling.InnerText</td>
                <td>@meter.FirstChild.NextSibling.NextSibling.InnerText</td>
                <td>@meter.FirstChild.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@meter.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>
                    @Html.ActionLink("Update", "Edit",    new { id = @meter.FirstChild.InnerText }, new { @class = "stellar" }) ::
                    @Html.ActionLink("Review", "Details", new { id = @meter.FirstChild.InnerText }, new { @class = "stellar" }) ::
                    @Html.ActionLink("Remove", "Delete",  new { id = @meter.FirstChild.InnerText }, new { @class = "stellar" })
                </td>
            </tr>
        }
    }
</table>

Click the WaterMetersController.cs tab to access the controller
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters link

Setting Up a Water Meter

Practical Learning: Setting Up a Water Meter

In the WaterMetersController class, change the second Create() method as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;

namespace StellarWaterPoint12.Controllers
{
    public class WaterMetersController : Controller
    {
        // GET: WaterMeters
        public ActionResult Index()
        {
            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);
                }

                if (xdWaterMeters.DocumentElement.ChildNodes.Count > 0)
                {
                    ViewData["WaterMeters"] = xdWaterMeters.DocumentElement.ChildNodes;
                }
                else
                {
                    ViewData["WaterMeters"] = null;
                }
            }

            return View();
        }

        // GET: WaterMeters/Details/5
        public ActionResult Details(int id)
        {
            return View();
        }

        // GET: WaterMeters/Create
        public ActionResult Create()
        {
            return View();
        }

        // POST: WaterMeters/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                XmlDocument xdWaterMeters = new XmlDocument();
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                if (!string.IsNullOrEmpty(collection["txtMeterNumber"]))
                {
                    if (System.IO.File.Exists(strFileWaterMeters))
                    {
                        using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.OpenOrCreate,
                                                                        FileAccess.ReadWrite, FileShare.ReadWrite))
                        {

                            xdWaterMeters.Load(fsWaterMeters);
                        }
                    }
                    else
                    {
                        xdWaterMeters.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                              "<water-meters></water-meters>");
                    }
                }

                XmlElement xeWaterMeter = xdWaterMeters.CreateElement("water-meter");

                string strWaterMeter = "<water-meter-id>" + collection["txtWaterMeterId"] + "</water-meter-id>" +
                                       "<meter-number>" + collection["txtMeterNumber"] + "</meter-number>" +
                                       "<make>" + collection["txtMake"] + "</make>" +
                                       "<model>" + collection["txtModel"] + "</model>" +
                                       "<meter-size>" + collection["txtMeterSize"] + "</meter-size>";

                xeWaterMeter.InnerXml = strWaterMeter;
                xdWaterMeters.DocumentElement.AppendChild(xeWaterMeter);

                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Create,
                                                                FileAccess.Write, FileShare.Write))
                {
                    xdWaterMeters.Save(fsWaterMeters);
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        . . .
    }
}

In the WaterMetersController class, right-click any section of one of the Create() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Create.
Click Add

Create a form as follows:

@{
    ViewBag.Title = "Create Water Meter";
}

<h2 class="common-font fw-bold text-center">Create Water Meter</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="common-font encloser-small">
        <div class="row mb-2">
            @Html.Label("txtWaterMeterId", "Meter Meter Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtWaterMeterId", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMake", "Make:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMake", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtModel", "Model:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtModel", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterSize", "Meter Size:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterSize", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <hr />

        <div class="row mb-2">
            <div class="col-md-5 col-form-label">
                @Html.ActionLink("Water Meters", "Index", new { area = "" }, new { @class = "stellar" })
            </div>
            <div class="col-md-7">
                <input type="submit" name="btnSaveWaterMeter" value="Save Water Meter" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

<hr />

<p class="text-center">
    @Html.ActionLink("View Water Meter",   "Details", new { area = "" }, new { @class = "stellar" }) ::
    @Html.ActionLink("Edit Water Meter",   "Edit",    new { area = "" }, new { @class = "stellar" }) ::
    @Html.ActionLink("Delete Water Meter", "Delete",  new { area = "" }, new { @class = "stellar" })
</p>

Click the WaterMetersController.cs tab to access the controller
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters link
Click the New Water Meter link

Type each of the following rows of records and click Save Water Meter for each:

Water Meter Id	Meter #	Make	Model	Meter Size
1	392-44-572	Constant Tech	TG-4822	5-Inch
2	938-75-869	Stan Wood	266G	Half Inch
3	588-279-663	Estellano	NCF-226	2 Inches

Return to your programming environment
On the Standard tolbar of Microsoft Visual Studio, click the Open button
Navigate to the AppData folder of this project, select WaterMeters.xml, and click Open
Add the records from the 4th to the last from the WaterMeters.xml file

Getting a Details of a Water Meter

Practical Learning: Getting a Details of a Water Meter

In the WaterMetersController class, change the Details() method as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;

namespace StellarWaterPoint12.Controllers
{
    public class WaterMetersController : Controller
    {
        // GET: WaterMeters
        public ActionResult Index()
        {
            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);
                }

                if (xdWaterMeters.DocumentElement.ChildNodes.Count > 0)
                {
                    ViewData["WaterMeters"] = xdWaterMeters.DocumentElement.ChildNodes;
                }
                else
                {
                    ViewData["WaterMeters"] = null;
                }
            }

            return View();
        }

        // GET: WaterMeters/Details/5
        public ActionResult Details(int id)
        {
            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);

                    XmlNodeList xnlWaterMeters          = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        if (xnWaterMeter.InnerText      == id.ToString())
                        {
                            ViewData["txtWaterMeterId"] = xnWaterMeter.InnerText;
                            ViewData["txtMeterNumber"]  = xnWaterMeter.NextSibling.InnerText;
                            ViewData["txtMake"]         = xnWaterMeter.NextSibling.NextSibling.InnerText;
                            ViewData["txtModel"]        = xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewData["txtMeterSize"]    = xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // GET: WaterMeters/Create
        public ActionResult Create()
        {
            return View();
        }

        // POST: WaterMeters/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                XmlDocument xdWaterMeters = new XmlDocument();
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                if (!string.IsNullOrEmpty(collection["txtMeterNumber"]))
                {
                    if (System.IO.File.Exists(strFileWaterMeters))
                    {
                        using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.OpenOrCreate,
                                                                        FileAccess.ReadWrite, FileShare.ReadWrite))
                        {

                            xdWaterMeters.Load(fsWaterMeters);
                        }
                    }
                    else
                    {
                        xdWaterMeters.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                              "<water-meters></water-meters>");
                    }
                }

                XmlElement xeWaterMeter = xdWaterMeters.CreateElement("water-meter");

                string strWaterMeter = "<water-meter-id>" + collection["txtWaterMeterId"] + "</water-meter-id>" +
                                       "<meter-number>"   + collection["txtMeterNumber"]  + "</meter-number>"   +
                                       "<make>"           + collection["txtMake"]         + "</make>"           +
                                       "<model>"          + collection["txtModel"]        + "</model>"          +
                                       "<meter-size>"     + collection["txtMeterSize"]    + "</meter-size>";

                xeWaterMeter.InnerXml = strWaterMeter;
                xdWaterMeters.DocumentElement.AppendChild(xeWaterMeter);

                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Create,
                                                                 FileAccess.Write, FileShare.Write))
                {
                    xdWaterMeters.Save(fsWaterMeters);
                }
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        . . .
    }
}

In the WaterMetersController class, right-click any section of the Details() method and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Details.
Click Add

Change the code as follows:

@{
    ViewBag.Title = "Water Meter Details";
}

<h2 class="text-center fw-bold common-font">Water Meter Details</h2>

<hr />

<div class="encloser-small common-font">
    <div class="row mb-2">
        @Html.Label("txtWaterMeterId", "Meter Meter Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtWaterMeterId", ViewBag.WaterMeterId as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtMake", "Make:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtMake", ViewBag.Make as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtModel", "Model:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtModel", ViewBag.Model as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtMeterSize", "Meter Size:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtMeterSize", ViewBag.MeterSize as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
</div>

Click the WaterMetersController.cs tab to access the controller
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters link
In the list of water meters, click the Review link that corresponds to the second record (Water Meter Id = 2):
Return to your programming environment

Updating a Water Meter

Practical Learning: Updating a Water Meter

In the WaterMetersController class, change the Edit() methods as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;

namespace StellarWaterPoint12.Controllers
{
    public class WaterMetersController : Controller
    {
        // GET: WaterMeters
        public ActionResult Index()
        {
            . . .

            return View();
        }

        // GET: WaterMeters/Details/5
        public ActionResult Details(int id)
        {
            . . .

            return View();
        }

        // GET: WaterMeters/Create
        public ActionResult Create()
        {
            return View();
        }

        // POST: WaterMeters/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                . . .
                
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: WaterMeters/Edit/5
        public ActionResult Edit(int id)
        {
            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);

                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        if (xnWaterMeter.InnerText == id.ToString())
                        {
                            ViewData["txtWaterMeterId"] = xnWaterMeter.InnerText;
                            ViewData["txtMeterNumber"]  = xnWaterMeter.NextSibling.InnerText;
                            ViewData["txtMake"]         = xnWaterMeter.NextSibling.NextSibling.InnerText;
                            ViewData["txtModel"]        = xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewData["txtMeterSize"]    = xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: WaterMeters/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                XmlDocument xdWaterMeters = new XmlDocument();
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                if (System.IO.File.Exists(strFileWaterMeters))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                     FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        xdWaterMeters.Load(fsWaterMeters);
                    }

                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Truncate,
                                                                     FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                        {
                            if (xnWaterMeter.InnerText == id.ToString())
                            {
                                xnWaterMeter.ParentNode.InnerXml = "<water-meter-id>" + id                           + "</water-meter-id>" +
                                                                   "<meter-number>"   + collection["txtMeterNumber"] + "</meter-number>"   +
                                                                   "<make>"           + collection["txtMake"]        + "</make>"           +
                                                                   "<model>"          + collection["txtModel"]       + "</model>"          +
                                                                   "<meter-size>"     + collection["txtMeterSize"]   + "</meter-size>";
                                xdWaterMeters.Save(fsWaterMeters);
                                break;
                            }
                        }
                    }
                }
                
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: WaterMeters/Delete/5
        public ActionResult Delete(int id)
        {
            return View();
        }

        // POST: WaterMeters/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

In the WaterMetersController class, right-click one of the Edit() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Edit.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Edit Water Meter";
}

<h2 class="fw-bold common-font text-center">Edit/Update Water Meter</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="common-font encloser-small">
        <div class="row mb-2">
            @Html.Label("txtWaterMeterId", "Meter Meter Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtWaterMeterId", null, htmlAttributes: new { @class = "form-control", id = "wtrMdlId" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string,
                              htmlAttributes: new { @class = "form-control", id = "mtrNbr" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMake", "Make:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMake", ViewBag.Make as string,
                              htmlAttributes: new { @class = "form-control", id = "make" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtModel", "Model:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtModel", ViewBag.Model as string, htmlAttributes: new { @class = "form-control", id = "model" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterSize", "Meter Size:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterSize", ViewBag.MeterSize as string, htmlAttributes: new { @class = "form-control", id = "mtrSize" })
            </div>
        </div>

        <hr />

        <div class="row mb-2">
            <label class="control-label col-md-5">
                @Html.ActionLink("Water Meters", "Index", null, htmlAttributes: new { @class = "stellar" })
            </label>
            <div class="col-md-7">
                <input type="submit" value="Update Water Meter" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

Click the WaterMetersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters link
In the list of water meters, click the Update link that corresponds to the first record (Water Meter Id = 1):

Change the following values:

Meter #:    392-494-572
Make:       Constance Technologies
Meter Size: 5/8 Inches

Click Update Water Meter
In the list of water meters, click the Edit link that corresponds to the second record (Water Meter Id = 2):

Change the following values:

Meter #:    938-725-869
Make:       Stanford Trend
Meter Size: 1 1/2 Inches

Click Update Water Meter
Return to your programming environment

Deleting a Water Meter

Practical Learning: Removing a Water Meter

In the WaterMetersController class, change the Delete() methods as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;
w
namespace StellarWaterPoint1.Controllers
{
    public class WaterMetersController : Controller
    {
        // GET: WaterMeters
        public ActionResult Index()
        {
            // Create a reference to the XML's DOM object
            XmlDocument xdWaterMeters = new XmlDocument();
            // Indicate the file that holds a list of water meters
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            // Check whether a file that holds a list of water meters exists
            if (System.IO.File.Exists(strFileWaterMeters))
            {
                // If that file exists, open it
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    /* Get the list of water meters from the file and store
                     * the records in the previously created DOM object. */
                    xdWaterMeters.Load(fsWaterMeters);
                }

                // Check if there is at least one record in the file of water meters
                if (xdWaterMeters.DocumentElement.ChildNodes.Count > 0)
                {
                    /* If there is at least one record for the water meters, 
                     * create an XmlNodeList list and transmit it to 
                     * a ViewData collection that wille be used in the view page.*/
                    ViewData["WaterMeters"] = xdWaterMeters.DocumentElement.ChildNodes;
                }
                else
                {
                    /* If there is no file or record for water meters,
                     * transmit a null list to the ViewData object.*/
                    ViewData["WaterMeters"] = null;
                }
            }

            return View();
        }

        // GET: WaterMeters/Details/5
        public ActionResult Details(int id)
        {
            // Create a reference to the XML's DOM object
            XmlDocument xdWaterMeters = new XmlDocument();
            // Indicate the file that holds a list of water meters
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            // If there a file that holds a list of water meters
            if (System.IO.File.Exists(strFileWaterMeters))
            {
                // If there is such a file, open it to get its records
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    // Get the records and load them in the created XML's DOM object
                    xdWaterMeters.Load(fsWaterMeters);

                    /* Using the water-meter-id element from the list of water meters, 
                     * create a collection of nodes and store it in an XmlNodeList variable. */
                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    // Check each record in the above XmlNodeList collection
                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        /* Find out if there is a record whose water-meter-id is the 
                         * same as the number (id) that came from the form. */
                        if (xnWaterMeter.InnerText == id.ToString())
                        {
                            /* If you find such a record, get the value of each element 
                             * and transmit it to a corresponding ViewData object. */
                            ViewData["txtWaterMeterId"] = xnWaterMeter.InnerText;
                            ViewData["txtMeterNumber"]  = xnWaterMeter.NextSibling.InnerText;
                            ViewData["txtMake"]         = xnWaterMeter.NextSibling.NextSibling.InnerText;
                            ViewData["txtModel"]        = xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewData["txtMeterSize"]    = xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // GET: WaterMeters/Create
        public ActionResult Create()
        {
            return View();
        }

        // POST: WaterMeters/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                // Create a reference to the XML's DOM
                XmlDocument xdWaterMeters = new XmlDocument();
                // Specify the file that would contain a list of water meters
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                /* When the user clicks the Submit button on the Create webpage, check the
                 * content of the Meter Number text box.
                 * If the user typed a value in the Meter Number text box, ... */
                if (!string.IsNullOrEmpty(collection["txtMeterNumber"]))
                {
                    // If an XML file for water meters was created already, ...
                    if (System.IO.File.Exists(strFileWaterMeters))
                    {
                        // ... open it ...
                        using(FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.OpenOrCreate,
                                                                        FileAccess.ReadWrite, FileShare.ReadWrite))
                        {
                            // ... and put the records in the DOM
                            xdWaterMeters.Load(fsWaterMeters);
                        }
                    }
                    else
                    {
                        // If there is no XML file yet, create skeleton code for an XML document, ...
                        xdWaterMeters.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                              "<water-meters></water-meters>");
                    }
                }

                // Get ready to create an XML element named water-meter
                XmlElement xeWaterMeter = xdWaterMeters.CreateElement("water-meter");

                // Create the markup of the XML water meter
                string strWaterMeter = "<water-meter-id>" + collection["txtWaterMeterId"] + "</water-meter-id>" + 
                                       "<meter-number>"   + collection["txtMeterNumber"]  + "</meter-number>"   +
                                       "<make>"           + collection["txtMake"]         + "</make>"           +
                                       "<model>"          + collection["txtModel"]        + "</model>"          +
                                       "<meter-size>"     + collection["txtMeterSize"]    + "</meter-size>";

                // Specify the markup of the new element
                xeWaterMeter.InnerXml = strWaterMeter;
                // Add the new node to the root
                xdWaterMeters.DocumentElement.AppendChild(xeWaterMeter);

                // Save the (new version of the) XML file
                using(FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Create,
                                                                FileAccess.Write, FileShare.Write))
                {
                    xdWaterMeters.Save(fsWaterMeters);
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: WaterMeters/Edit/5
        public ActionResult Edit(int id)
        {
            // Create an XML DOM object
            XmlDocument xdWaterMeters = new XmlDocument();
            // Declare a string variable for the file that holds the records of water meters
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            // Check the existence of the file that holds the records of water meters
            if (System.IO.File.Exists(strFileWaterMeters))
            {
                // If that file exists, open it and store it in a FileStream object
                using(FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                FileAccess.Read, FileShare.Read))
                {
                    // Put the water meters records in the previously created DOM object
                    xdWaterMeters.Load(fsWaterMeters);

                    /* Declare an XmlNodeList.
                     * Create a list of water meter records, using the water-meter-id element as reference. */
                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");
                    
                    // Once a list of water meters has been created, check each of its records
                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        // Look for a record whose water-meter-id value is the same as the number that came from the Web form   
                        if (xnWaterMeter.InnerText == id.ToString())
                        {
                            /* If you find such an element, get the value of each of its siblings 
                             * and pass it to a text box that corresponds to the XML node.*/    
                            ViewData["txtWaterMeterId"] = xnWaterMeter.InnerText;
                            ViewData["txtMeterNumber"]  = xnWaterMeter.NextSibling.InnerText;
                            ViewData["txtMake"]         = xnWaterMeter.NextSibling.NextSibling.InnerText;
                            ViewData["txtModel"]        = xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewData["txtMeterSize"]    = xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: WaterMeters/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                // Create an XML DOM object
                XmlDocument xdWaterMeters = new XmlDocument();
                // Get the file that holds the records of water meters and store its path in a string variable
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                // Check the file that holds the records of water meters
                if (System.IO.File.Exists(strFileWaterMeters))
                {
                    // If that file exists, open it and store it in a FileStream object
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                     FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        // Store the records of water meters in the existing XML DOM object
                        xdWaterMeters.Load(fsWaterMeters);
                    }

                    // Create an XmlNodeList that will hold a list of water meters (from the file)
                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    // Create a FileStream from the previously mentioned file of water meters
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Truncate,
                                                                     FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        // Check each water meter record
                        foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                        {
                            /* If you find a record whose water-meter-id has the same value 
                             * as the value from the Water Meter Id from the Web form, ... */
                            if (xnWaterMeter.InnerText == id.ToString())
                            {
                                // Change each value of the elements of the current node
                                xnWaterMeter.ParentNode.InnerXml = "<water-meter-id>" + id + "</water-meter-id>"     +
                                                                   "<meter-number>"   + collection["txtMeterNumber"] + "</meter-number>" +
                                                                   "<make>"           + collection["txtMake"]        + "</make>"         +
                                                                   "<model>"          + collection["txtModel"]       + "</model>"        +
                                                                   "<meter-size>"     + collection["txtMeterSize"]   + "</meter-size>";
                                // Save the updated file
                                xdWaterMeters.Save(fsWaterMeters);
                                // Stop the operation (because it has been completed).
                                break;
                            }
                        }
                    }
                }

                // After this operation, go to the home page of the water meters
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: WaterMeters/Delete/5
        public ActionResult Delete(int id)
        {
            // Create an XML DOM
            XmlDocument xdWaterMeters = new XmlDocument();
            // Get the path to the file that has the records of water meters
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            // Check if that file exists
            if (System.IO.File.Exists(strFileWaterMeters))
            {
                // If that file exists, open it and pass it to a FileStream object
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    // Get the records from the DOM object and store them into the DOM object
                    xdWaterMeters.Load(fsWaterMeters);

                    // Get the collection of water meter objects
                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                    // Scan the collection of water meters
                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        /* Try to match a record whose Id is the same as the Id 
                         * of the record the user had clicked on the form*/
                        if (xnWaterMeter.InnerText == id.ToString())
                        {
                            /* If you find such a record, get the values of that record 
                             * and pass them to the text boxes on the Web form.*/
                            ViewData["txtWaterMeterId"] = xnWaterMeter.InnerText;
                            ViewData["txtMeterNumber"] = xnWaterMeter.NextSibling.InnerText;
                            ViewData["txtMake"] = xnWaterMeter.NextSibling.NextSibling.InnerText;
                            ViewData["txtModel"] = xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewData["txtMeterSize"] = xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: WaterMeters/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here
                XmlDocument xdWaterMeters = new XmlDocument();
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                // Make sure an XML file for the water meters was previously created
                if (System.IO.File.Exists(strFileWaterMeters))
                {
                    // If such a file exists, open it and store it in a FileStream object
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                     FileAccess.Read, FileShare.Read))
                    {
                        // Get the records and store them in an XML DOM object
                        xdWaterMeters.Load(fsWaterMeters);
                    }

                    // Get ready to change something on the file
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Truncate,
                                                                     FileAccess.Write, FileShare.Write))
                    {
                        // Get a collection of water meter nodes
                        XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("water-meter-id");

                        // Check each node
                        foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                        {
                            /* If you find a water meter record whose water-meter-id is 
                             * the same as the id of the record the user clicked, ... */
                            if (xnWaterMeter.InnerText == id.ToString())
                            {
                                // ... ask its parent to delete that record
                                xdWaterMeters.DocumentElement.RemoveChild(xnWaterMeter.ParentNode);
                                // Now that the record has been deleted, save the XML file
                                xdWaterMeters.Save(fsWaterMeters);
                                // And stop checking the records
                                break;
                            }
                        }
                    }
                }

                // Return to the home page of the water meters
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

In the WaterMetersController.cs class, right-click one of the Delete() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name is displaying Delete.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Delete Water Meter";
}

<h2 class="fw-bold common-font text-center">Delete Water Meter</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="encloser-small common-font">
        <div class="row mb-2">
            @Html.Label("txtWaterMeterId", "Meter Meter Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtWaterMeterId", ViewBag.WaterMeterId as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMake", "Make:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMake", ViewBag.Make as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtModel", "Model:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtModel", ViewBag.Model as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterSize", "Meter Size:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterSize", ViewBag.MeterSize as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
    </div>

    <hr />

    <div class="encloser-small">
        <h3 class="common-font fw-bold text-center">Are you sure you want to remove this water meter from the system?</h3>
        <div class="row mb-2">
            <div class="col-md-4">
                @Html.ActionLink("Water Meters", "Index", null, new { @class = "stellar" }) ::
            </div>
            <div class="col-md-8">
                <input type="submit" value="Delete this Water Meter" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

Click the WaterMetersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters link
In the list of water meters, click the Remove link that corresponds to the 5th record (Water Meter Id = 5):
Click the Delete this Water Meter button
Close the browser and return to your programming environment

Customers

Introduction

Customers are people and companies that consume a resource such as water. In this section, we will create object that can assist the employees in creating and managing customers accounts.

Practical Learning: Introducing Customers

In the Solution Explorer, right-click Controllers -> Add -> New Scaffolded Item...
In the left list of the Add New Scaffolded Item dialog box, click MVC and, in the middle list, click MVC 5 Controller With Read/Write Actions
Click Add
In the Add Controller dialog box, in the Controller Name text box, replace Default with Customers (to get CustomersController)
Click Add

Getting a List of Customers Records

Practical Learning: Getting a List of Customers Records

In the CustomersController class, change the Index() method as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;

namespace StellarWaterPoint12.Controllers
{
    public class CustomersController : Controller
    {
        // GET: Customers
        public ActionResult Index()
        {
            
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsCustomers);
                }

                ViewBag.Customers = xdCustomers.DocumentElement.ChildNodes.Count > 0 ? xdCustomers.DocumentElement.ChildNodes : null;
            }

            return View();
        }

        . . .
    }
}

In the CustomersController class, right-click any area of the Index() method and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name combo box is displaying Index.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Customers Accounts";
}

<h2 class="fw-bold common-font text-center">Customers Accounts</h2>

<hr />

<table class="table table-striped common-font">
    <tr>
        <th class="fw-bold">Customer Id</th>
        <th class="fw-bold">Account #</th>
        <th class="fw-bold">Account Name</th>
        <th class="fw-bold">Meter #</th>
        <th class="fw-bold">Account Type</th>
        <th class="fw-bold">Address</th>
        <th class="fw-bold">City</th>
        <th class="fw-bold">County</th>
        <th class="fw-bold">State</th>
        <th class="fw-bold">ZIP Code</th>
        <th>@Html.ActionLink("Create Customer Account", "Create", null, htmlAttributes: new { @class = "stellar" })</th>
    </tr>

    @if (ViewBag.customers != null)
    {
        foreach (System.Xml.XmlNode client in ViewBag.Customers as System.Xml.XmlNodeList)
        {
            <tr>
                <td class="text-center">@client.FirstChild.InnerText</td>
                <td>@client.FirstChild.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td class="text-center">@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td class="text-center">@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@client.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>
                    @Html.ActionLink("Update", "Edit", new { id = @client.FirstChild.InnerText }) |
                    @Html.ActionLink("Review", "Details", new { id = @client.FirstChild.InnerText }) |
                    @Html.ActionLink("Remove", "Delete", new { id = @client.FirstChild.InnerText })
                </td>
            </tr>
        }
    }
</table>

Click the CustomersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Customers link
Return to your programming environment

Creating a Customer Account

Practical Learning: Creating a Customer Account

In the CustomersController class, change the Create() methods as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;
using System.Collections.Generic;

namespace StellarWaterPoint13.Controllers
{
    public class CustomersController : Controller
    {
        . . .

        // GET: Customers/Details/5
        public ActionResult Details(int id)
        {
            return View();
        }

        // GET: Customers/Create
        public ActionResult Create()
        {
            int customerId = 0;
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath(&quot;/AppData/Customers.xml&quot;);

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsCustomers);

                    XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName(&quot;customer-id&quot;);

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        customerId = int.Parse(xnCustomer.InnerText);
                    }
                }
            }

            ViewData[&quot;txtCustomerId&quot;] = customerId + 1;

            List&lt;SelectListItem&gt; acntsTypes = new List&lt;SelectListItem&gt;();

            acntsTypes.Add(new SelectListItem() { Text = &quot;OTH - Other&quot;, Value = &quot;OTH&quot; });
            acntsTypes.Add(new SelectListItem() { Text = &quot;BUS - General Business&quot;, Value = &quot;BUS&quot; });
            acntsTypes.Add(new SelectListItem() { Text = &quot;RES - Residential Household&quot;, Value = &quot;RES&quot; });
            acntsTypes.Add(new SelectListItem() { Text = &quot;SGO - Social Government/Non-Profit Organization&quot;, Value = &quot;SGO&quot; });
            acntsTypes.Add(new SelectListItem() { Text = &quot;UUO - Unidentified or Unclassified Type of Organization&quot;, Value = &quot;UUO&quot; });
            acntsTypes.Add(new SelectListItem() { Text = &quot;WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc&quot;, Value = &quot;WAT&quot; });

            ViewBag.cbxAccountsTypes = acntsTypes;

            return View();
        }

        // POST: Customers/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                XmlDocument xdCustomers = new XmlDocument();
                // Specify the file that would contain a list of customers
                string strFileCustomers = Server.MapPath(&quot;/AppData/Customers.xml&quot;);

                if (!string.IsNullOrEmpty(collection[&quot;txtAccountNumber&quot;]))
                {
                    // If an XML file for customers was created already, ...
                    if (System.IO.File.Exists(strFileCustomers))
                    {
                        // ... open it ...
                        using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.OpenOrCreate,
                                                                        FileAccess.ReadWrite, FileShare.ReadWrite))
                        {
                            // ... and put the records in the DOM
                            xdCustomers.Load(fsCustomers);
                        }
                    }
                    else
                    {
                        // If there is no XML file yet, create skeleton code for an XML document, ...
                        xdCustomers.LoadXml(&quot;&lt;?xml version=\&quot;1.0\&quot; encoding=\&quot;utf-8\&quot;?&gt;&quot; +
                                              &quot;&lt;customers&gt;&lt;/customers&gt;&quot;);
                    }
                }

                // Get ready to create an XML element named water-meter
                XmlElement xeCustomer = xdCustomers.CreateElement(&quot;customer&quot;);

                // Create the markup of the XML water meter
                string strCustomer = &quot;&lt;customer-id&gt;&quot;    + collection[&quot;txtCustomerId&quot;]    + &quot;&lt;/customer-id&gt;&quot;    +
                                     &quot;&lt;account-number&gt;&quot; + collection[&quot;txtAccountNumber&quot;] + &quot;&lt;/account-number&gt;&quot; +
                                     &quot;&lt;account-name&gt;&quot;   + collection[&quot;txtAccountName&quot;]   + &quot;&lt;/account-name&gt;&quot;   +
                                     &quot;&lt;meter-number&gt;&quot;   + collection[&quot;txtMeterNumber&quot;]   + &quot;&lt;/meter-number&gt;&quot;   +
                                     &quot;&lt;account-type&gt;&quot;   + collection[&quot;cbxAccountsTypes&quot;] + &quot;&lt;/account-type&gt;&quot;   +
                                     &quot;&lt;address&gt;&quot;        + collection[&quot;txtAddress&quot;]       + &quot;&lt;/address&gt;&quot;        +
                                     &quot;&lt;city&gt;&quot;           + collection[&quot;txtCity&quot;]          + &quot;&lt;/city&gt;&quot;           +
                                     &quot;&lt;county&gt;&quot;         + collection[&quot;txtCounty&quot;]        + &quot;&lt;/county&gt;&quot;         +
                                     &quot;&lt;state&gt;&quot;          + collection[&quot;txtState&quot;]         + &quot;&lt;/state&gt;&quot;          +
                                     &quot;&lt;zip-code&gt;&quot;       + collection[&quot;txtZIPCode&quot;]       + &quot;&lt;/zip-code&gt;&quot;;

                // Specify the markup of the new element
                xeCustomer.InnerXml = strCustomer;
                // Add the new node to the root
                xdCustomers.DocumentElement.AppendChild(xeCustomer);

                // Save the (new version of the) XML file
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Create,
                                                                 FileAccess.Write, FileShare.Write))
                {
                    xdCustomers.Save(fsCustomers);
                }

                return RedirectToAction(&quot;Index&quot;);
            }
            catch
            {
                return View();
            }
        }

        . . .
    }
}

In the CustomersController class, right-click one of the Create() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name combo box is displaying Create.
Click Add

Change the document as follows

@{
    ViewBag.Title = "Create Customer";
}

<h2 class="common-font fw-bold text-center">Create Customer Account</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="common-font encloser-small">
        <div class="row mb-2">
            @Html.Label("txtCustomerId", "Customer Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCustomerId", ViewBag.txtCustomerId as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAccountNumber", "Account #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountNumber", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAccountName", "Account Name:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountName", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", null, htmlAttributes: new { @class = "form-control", id = "mtrNbr" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterDetails", "Meter Details:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8"><input type="text" id="meterDetails" class="form-control" disabled /></div>
        </div>

        <div class="row mb-2">
            @Html.Label("cbxAccountsTypes", "Account Type:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-sm-8">
                @Html.DropDownList("cbxAccountsTypes", ViewBag.AccountsTypes as SelectList, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAddress", "Address:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAddress", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCity", "City:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCity", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCounty", "County:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCounty", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtState", "State:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtState", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtZIPCode", "ZIP-Code:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtZIPCode", null, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <hr />

        <div class="row mb-2">
            <div class="col-md-5 col-form-label">
                @Html.ActionLink("Customers", "Index", new { area = "" }, new { @class = "stellar" })
            </div>
            <div class="col-md-7">
                <input type="submit" name="btnSaveCustomerAccount" value="Save Customer Account" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

@Scripts.Render("~/bundles/jquery")

<script type="text/javascript">
    $(document).ready(function () {
        $("#mtrNbr").blur(function (event) {
            var connection = {
                url: "/AppData/WaterMeters.xml",
                method: "GET",
                dataType: "xml"
            };
            $.ajax(connection).
                done(function (data) {
                    var waterMeters = $(data).find("water-meter");
                    waterMeters.each(function () {
                        if ($(this).find("meter-number").text() == $("#mtrNbr").val())
                            $("#meterDetails").val($(this).find("make").text() + " " + $(this).find("model").text() + " (" + $(this).find("meter-size").text() + ")");
                    });
                });
        }); // Lost Focus Event
    }); // Document.Ready
</script>

Click the CustomersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Customers link
Click the New Customer Account link
In Meter # and, in its text box, type 799-528-461
Press Tab

Enter the other values as follows:

Customer Id:  1
Account #:    9279-570-8394
Account Name: Thomas Stones
Meter #:      799-528-461
Account Type: RES - Residential Household
Address:      10252 Broward Ave #D4
City:         Frederick
County:       Frederick
State:        MD
ZIP-Code:     21703-4422

Click Save Customer Account

In the same way, create the following two records:

Account #	Account Name	Meter #	Account Type	Address	City	County	State	ZIP-Code
8080-888-4444	Hernola Dough	594-827-359	UUO - Unidentified or Unclassified Type of Organization	10 10 Hexagonal Drv	Winston	Yoke	Penn	11402-4411
7080-583-5947	Sunny Yard	827-508-248	WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc	663 Sherry Wood East Street	Shimpstown	Franklin	PA	17236-2626

Return to your programming environment

Getting the Details of a Customer Account

Practical Learning: Getting a Details of a Customer Account

In the CustomersController class, change the Details() method as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;
using System.Collections.Generic;

namespace StellarWaterPoint13.Controllers
{
    public class CustomersController : Controller
    {
        . . .

        // GET: Customers/Details/5
        public ActionResult Details(int id)
        {
            string strMeterNumber   = string.Empty;
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsWaterMeters    =  new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsWaterMeters);

                    XmlNodeList xnlCustomers       =  xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        if (xnCustomer.InnerText   == id.ToString())
                        {
                            ViewBag.CustomerId     =  xnCustomer.InnerText;
                            ViewBag.AccountNumber  =  xnCustomer.NextSibling.InnerText;
                            ViewBag.AccountName    =  xnCustomer.NextSibling.NextSibling.InnerText;

                            strMeterNumber         =  xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                            string strActCode      =  xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            string strAccountType  =  string.Empty;

                            if (strActCode         == "BUS")
                            {
                                strAccountType     =  "BUS - General Business";
                            }
                            else if (strActCode    == "RES")
                            {
                                strAccountType     =  "RES - Residential Household";
                            }
                            else if (strActCode    == "SGO")
                            {
                                strAccountType     =  "SGO - Social/Government/Non - Profit Organization";
                            }
                            else if (strActCode    == "UUO")
                            {
                                strAccountType     =  "UUO - Unidentified or Unclassified Type of Organization";
                            }
                            else if (strActCode    == "WAT")
                            {
                                strAccountType     =  "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc";
                            }
                            else
                            {
                                strAccountType     =  "OTH - Other";
                            }

                            ViewBag.AccountType    = strAccountType;
                            ViewBag.Address        = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.City           = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.County         = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.State          = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.ZIPCode        = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            XmlDocument xdWaterMeters              = new XmlDocument();
            string strFileWaterMeters              = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters    = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);

                    XmlNodeList xnlWaterMeters     = xdWaterMeters.GetElementsByTagName("meter-number");

                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        if (xnWaterMeter.InnerText == strMeterNumber)
                        {
                            ViewBag.MeterNumber    = xnWaterMeter.PreviousSibling.InnerText + " - " + strMeterNumber;
                            ViewBag.MeterDetails   = xnWaterMeter.NextSibling.InnerText + " " +
                                                     xnWaterMeter.NextSibling.NextSibling.InnerText +
                                                     " (" + xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText + ")";
                            break;
                        }
                    }
                }
            }

            return View();
        }

        . . .
    }
}

In the CustomersController class, right-click any section of the Details() method and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Details.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Customer Details";
}

<h2 class="fw-bold common-font text-center">Customer Account Details</h2>

<hr />

<div class="encloser-small common-font">
    <div class="row mb-2">
        @Html.Label("txtCustomerId", "Customer Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtCustomerId", ViewBag.CustomerId as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtAccountNumber", "Account #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtAccountNumber", ViewBag.AccountNumber as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtAccountName", "Account Name:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtAccountName", ViewBag.AccountName as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtMeterDetails", "Meter Details:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtMeterDetails", ViewBag.MeterDetails as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtAccountType", "Account Type:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtAccountType", ViewBag.AccountType as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
    <div class="row mb-2">
        @Html.Label("txtAddress", "Address:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtAddress", ViewBag.Address as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>

    <div class="row mb-2">
        @Html.Label("txtCity", "City:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtCity", ViewBag.City as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>

    <div class="row mb-2">
        @Html.Label("txtCounty", "County:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtCounty", ViewBag.County as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>

    <div class="row mb-2">
        @Html.Label("txtState", "State:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtState", ViewBag.State as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>

    <div class="row mb-2">
        @Html.Label("txtZIPCode", "ZIP-Code", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
        <div class="col-md-8">
            @Html.TextBox("txtZIPCode", ViewBag.ZIPCode as string,
                          htmlAttributes: new { @class = "form-control", disabled = "disabled" })
        </div>
    </div>
</div>

Click the CustomersController.cs tab to access the controller
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Customers link
In the list of customers, click the Review link that corresponds to the first record (Customer Id = 1):
In the Address bar of the browser, change the number in the end line to 2 and press Enter:
Return to your programming environment

Updating a Customer Account

Practical Learning: Updating a Customer Account

In the CustomersController class, change the Edit() methods as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;
using System.Collections.Generic;

namespace StellarWaterPoint13.Controllers
{
    public class CustomersController : Controller
    {
        . . .

        // GET: Customers/Edit/5
        public ActionResult Edit(int id)
        {
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            string strMeterNumber = string.Empty;

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileCustomers, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsWaterMeters);

                    XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        if (xnCustomer.InnerText == id.ToString())
                        {
                            ViewBag.CustomerId = xnCustomer.InnerText;
                            ViewBag.AccountNumber = xnCustomer.NextSibling.InnerText;
                            ViewBag.AccountName = xnCustomer.NextSibling.NextSibling.InnerText;
                            ViewBag.MeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                            strMeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;

                            string strActCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            string strAccountType = string.Empty;

                            List<SelectListItem> actTypes = new List<SelectListItem>();

                            if (strActCode == "OTH")
                            {
                                actTypes.Add(new SelectListItem() { Text = "OTH - Other", Value = "OTH", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "OTH - Other", Value = "OTH" });
                            }

                            if (strActCode == "BUS")
                            {
                                actTypes.Add(new SelectListItem() { Text = "BUS - General Business", Value = "BUS", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "BUS - General Business", Value = "BUS" });
                            }

                            if (strActCode == "RES")
                            {
                                actTypes.Add(new SelectListItem() { Text = "RES - Residential Household", Value = "RES", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "RES - Residential Household", Value = "RES" });
                            }

                            if (strActCode == "SGO")
                            {
                                actTypes.Add(new SelectListItem() { Text = "SGO - Social/Government/Non - Profit Organization", Value = "SGO", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "SGO - Social/Government/Non - Profit Organization", Value = "SGO" });
                            }

                            if (strActCode == "UUO")
                            {
                                actTypes.Add(new SelectListItem() { Text = "UUO - Unidentified or Unclassified Type of Organization", Value = "UUO", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "UUO - Unidentified or Unclassified Type of Organization", Value = "UUO" });
                            }

                            if (strActCode == "WAT")
                            {
                                actTypes.Add(new SelectListItem() { Text = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc", Value = "WAT", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc", Value = "WAT" });
                            }

                            ViewBag.cbxAccountsTypes = actTypes;

                            ViewBag.Address = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.City = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.County = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.State = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.ZIPCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: Customers/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                XmlDocument xdCustomers = new XmlDocument();
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

                XmlElement xeCustomer = xdCustomers.CreateElement("customer");

                // Create the markup of a customer
                string strCustomer = "<customer-id>" + id + "</customer-id>" +
                                     "<account-number>" + collection["txtAccountNumber"] + "</account-number>" +
                                     "<account-name>" + collection["txtAccountName"] + "</account-name>" +
                                     "<meter-number>" + collection["txtMeterNumber"] + "</meter-number>" +
                                     "<account-type>" + collection["cbxAccountsTypes"].Substring(0, 3) + "</account-type>" +
                                     "<address>" + collection["txtAddress"] + "</address>" +
                                     "<city>" + collection["txtCity"] + "</city>" +
                                     "<county>" + collection["txtCounty"] + "</county>" +
                                     "<state>" + collection["txtState"] + "</state>" +
                                     "<zip-code>" + collection["txtZIPCode"] + "</zip-code>";

                xeCustomer.InnerXml = strCustomer;

                if (System.IO.File.Exists(strFileCustomers))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileCustomers, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        xdCustomers.Load(fsWaterMeters);
                    }

                    using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer");

                        foreach (XmlNode xnCustomer in xnlCustomers)
                        {
                            if (xnCustomer.FirstChild.InnerText == id.ToString())
                            {
                                xnCustomer.ParentNode.ReplaceChild(xeCustomer, xnCustomer);
                                xdCustomers.Save(fsCustomers);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        . . .
    }
}

In the CustomersController class, right-click one of the Edit() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Edit.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Edit Customer";
}

<h2 class="text-center common-font fw-bold">Edit/Update Customer Account</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="common-font encloser-small">
        <div class="row mb-2">
            @Html.Label("txtCustomerId", "Customer Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCustomerId", ViewBag.CustomerId as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAccountNumber", "Account #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountNumber", ViewBag.AccountNumber as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAccountName", "Account Name:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountName", ViewBag.AccountName as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string, htmlAttributes: new { @class = "form-control", id = "mtrNbr" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtMeterDetails", "Meter Details:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8"><input type="text" id="meterDetails" class="form-control" disabled /></div>
        </div>

        <div class="row mb-2">
            @Html.Label("cbxAccountsTypes", "Account Type:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-sm-8">
                @Html.DropDownList("cbxAccountsTypes", ViewBag.AccountsTypes as SelectList, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtAddress", "Address:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAddress", ViewBag.Address as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCity", "City:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCity", ViewBag.City as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCounty", "County:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCounty", ViewBag.County as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtState", "State:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtState", ViewBag.State as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtZIPCode", "ZIP-Code:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtZIPCode", ViewBag.ZIPCode as string, htmlAttributes: new { @class = "form-control" })
            </div>
        </div>

        <hr />

        <div class="row mb-2">
            <div class="col-md-5 col-form-label">
                @Html.ActionLink("Customers", "Index", new { area = "" }, new { @class = "stellar" })
            </div>
            <div class="col-md-7">
                <input type="submit" name="btnUpdateCustomerAccount" value="Update Customer Account" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

@Scripts.Render("~/bundles/jquery")

<script type="text/javascript">
    $(document).ready(function () {
        var connection = {
            url: "/AppData/WaterMeters.xml",
            method: "GET",
            dataType: "xml"
        };
        $.ajax(connection).
            done(function (data) {
                var waterMeters = $(data).find("water-meter");
                waterMeters.each(function () {
                    if ($(this).find("meter-number").text() == $("#mtrNbr").val())
                        $("#meterDetails").val($(this).find("make").text() + " " + $(this).find("model").text() + " (" + $(this).find("meter-size").text() + ")");
                });
            });

        $("#mtrNbr").blur(function (event) {
            var connection = {
                url: "/AppData/WaterMeters.xml",
                method: "GET",
                dataType: "xml"
            };
            $.ajax(connection).
                done(function (data) {
                    var waterMeters = $(data).find("water-meter");
                    waterMeters.each(function () {
                        if ($(this).find("meter-number").text() == $("#mtrNbr").val())
                            $("#meterDetails").val($(this).find("make").text() + " " + $(this).find("model").text() + " (" + $(this).find("meter-size").text() + ")");
                    });
                });
        }); // Lost Focus Event
    }); // Document.Ready
</script>

Click the CustomersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Customers link
In the list of customers, click the Update link that corresponds to the second record (Customer Id = 2):

Change the following values:

Customer Id	Account #	Account Name	Meter #	Account Type	Address	City	County	State	ZIP Code
2	9279-570-8394	Bernotte's Doughnuts	799-528-461	RES	10252 Broward Avenue, Suite #D4	Winterstown	York	MD	21703-4422

Click Update Customer Account:
Return to your programming environment

Deleting a Customer Account

Practical Learning: Deleting a Customer Account

In the CustomersController class, change the Delete() methods as follows:

using System.IO;
using System.Xml;
using System.Web.Mvc;
using System.Collections.Generic;

namespace StellarWaterPoint13.Controllers
{
    public class CustomersController : Controller
    {
        // GET: Customers
        public ActionResult Index()
        {
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsCustomers);
                }

                ViewBag.Customers = xdCustomers.DocumentElement.ChildNodes.Count > 0 ? xdCustomers.DocumentElement.ChildNodes : null;
            }

            return View();
        }

        // GET: Customers/Details/5
        public ActionResult Details(int id)
        {
            string strMeterNumber   = string.Empty;
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsWaterMeters    = new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsWaterMeters);

                    XmlNodeList xnlCustomers       = xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        if (xnCustomer.InnerText   == id.ToString())
                        {
                            ViewBag.CustomerId     = xnCustomer.InnerText;
                            ViewBag.AccountNumber  = xnCustomer.NextSibling.InnerText;
                            ViewBag.AccountName    = xnCustomer.NextSibling.NextSibling.InnerText;

                            strMeterNumber         = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                            string strActCode      = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            string strAccountType  = string.Empty;

                            if (strActCode         == "BUS")
                            {
                                strAccountType     = "BUS - General Business";
                            }
                            else if (strActCode    == "RES")
                            {
                                strAccountType     = "RES - Residential Household";
                            }
                            else if (strActCode    == "SGO")
                            {
                                strAccountType     = "SGO - Social/Government/Non - Profit Organization";
                            }
                            else if (strActCode    == "UUO")
                            {
                                strAccountType     = "UUO - Unidentified or Unclassified Type of Organization";
                            }
                            else if (strActCode    == "WAT")
                            {
                                strAccountType     = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc";
                            }
                            else
                            {
                                strAccountType     = "OTH - Other";
                            }

                            ViewBag.AccountType    = strAccountType;
                            ViewBag.Address        = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.City           = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.County         = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.State          = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.ZIPCode        = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            XmlDocument xdWaterMeters              = new XmlDocument();
            string strFileWaterMeters              = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters    = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);

                    XmlNodeList xnlWaterMeters     = xdWaterMeters.GetElementsByTagName("meter-number");

                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        if (xnWaterMeter.InnerText == strMeterNumber)
                        {
                            ViewBag.MeterNumber    = xnWaterMeter.PreviousSibling.InnerText + " - " + strMeterNumber;
                            ViewBag.MeterDetails   = xnWaterMeter.NextSibling.InnerText + " " +
                                                     xnWaterMeter.NextSibling.NextSibling.InnerText +
                                                     " (" + xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText + ")";
                            break;
                        }
                    }
                }
            }

            return View();
        }

        // GET: Customers/Create
        public ActionResult Create()
        {
            int customerId = 0;
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsCustomers);

                    XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        customerId = int.Parse(xnCustomer.InnerText);
                    }
                }
            }

            ViewData["txtCustomerId"] = customerId + 1;

            List<SelectListItem> acntsTypes = new List<SelectListItem>();

            acntsTypes.Add(new SelectListItem() { Text = "OTH - Other", Value = "OTH" });
            acntsTypes.Add(new SelectListItem() { Text = "BUS - General Business", Value = "BUS" });
            acntsTypes.Add(new SelectListItem() { Text = "RES - Residential Household", Value = "RES" });
            acntsTypes.Add(new SelectListItem() { Text = "SGO - Social Government/Non-Profit Organization", Value = "SGO" });
            acntsTypes.Add(new SelectListItem() { Text = "UUO - Unidentified or Unclassified Type of Organization", Value = "UUO" });
            acntsTypes.Add(new SelectListItem() { Text = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc", Value = "WAT" });

            ViewBag.cbxAccountsTypes = acntsTypes;

            return View();
        }

        // POST: Customers/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                XmlDocument xdCustomers = new XmlDocument();
                // Specify the file that would contain a list of customers
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

                if (!string.IsNullOrEmpty(collection["txtAccountNumber"]))
                {
                    // If an XML file for customers was created already, ...
                    if (System.IO.File.Exists(strFileCustomers))
                    {
                        // ... open it ...
                        using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.OpenOrCreate,
                                                                        FileAccess.ReadWrite, FileShare.ReadWrite))
                        {
                            // ... and put the records in the DOM
                            xdCustomers.Load(fsCustomers);
                        }
                    }
                    else
                    {
                        // If there is no XML file yet, create skeleton code for an XML document, ...
                        xdCustomers.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                              "<customers></customers>");
                    }
                }

                // Get ready to create an XML element named water-meter
                XmlElement xeCustomer = xdCustomers.CreateElement("customer");

                // Create the markup of the XML water meter
                string strCustomer = "<customer-id>"    + collection["txtCustomerId"]    + "</customer-id>"    +
                                     "<account-number>" + collection["txtAccountNumber"] + "</account-number>" +
                                     "<account-name>"   + collection["txtAccountName"]   + "</account-name>"   +
                                     "<meter-number>"   + collection["txtMeterNumber"]   + "</meter-number>"   +
                                     "<account-type>"   + collection["cbxAccountsTypes"] + "</account-type>"   +
                                     "<address>"        + collection["txtAddress"]       + "</address>"        +
                                     "<city>"           + collection["txtCity"]          + "</city>"           +
                                     "<county>"         + collection["txtCounty"]        + "</county>"         +
                                     "<state>"          + collection["txtState"]         + "</state>"          +
                                     "<zip-code>"       + collection["txtZIPCode"]       + "</zip-code>";

                // Specify the markup of the new element
                xeCustomer.InnerXml = strCustomer;
                // Add the new node to the root
                xdCustomers.DocumentElement.AppendChild(xeCustomer);

                // Save the (new version of the) XML file
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Create,
                                                                 FileAccess.Write, FileShare.Write))
                {
                    xdCustomers.Save(fsCustomers);
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: Customers/Edit/5
        public ActionResult Edit(int id)
        {
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            string strMeterNumber = string.Empty;

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileCustomers, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsWaterMeters);

                    XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        if (xnCustomer.InnerText == id.ToString())
                        {
                            ViewBag.CustomerId = xnCustomer.InnerText;
                            ViewBag.AccountNumber = xnCustomer.NextSibling.InnerText;
                            ViewBag.AccountName = xnCustomer.NextSibling.NextSibling.InnerText;
                            ViewBag.MeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                            strMeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;

                            string strActCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            string strAccountType = string.Empty;

                            List<SelectListItem> actTypes = new List<SelectListItem>();

                            if (strActCode == "OTH")
                            {
                                actTypes.Add(new SelectListItem() { Text = "OTH - Other", Value = "OTH", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "OTH - Other", Value = "OTH" });
                            }

                            if (strActCode == "BUS")
                            {
                                actTypes.Add(new SelectListItem() { Text = "BUS - General Business", Value = "BUS", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "BUS - General Business", Value = "BUS" });
                            }

                            if (strActCode == "RES")
                            {
                                actTypes.Add(new SelectListItem() { Text = "RES - Residential Household", Value = "RES", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "RES - Residential Household", Value = "RES" });
                            }

                            if (strActCode == "SGO")
                            {
                                actTypes.Add(new SelectListItem() { Text = "SGO - Social/Government/Non - Profit Organization", Value = "SGO", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "SGO - Social/Government/Non - Profit Organization", Value = "SGO" });
                            }

                            if (strActCode == "UUO")
                            {
                                actTypes.Add(new SelectListItem() { Text = "UUO - Unidentified or Unclassified Type of Organization", Value = "UUO", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "UUO - Unidentified or Unclassified Type of Organization", Value = "UUO" });
                            }

                            if (strActCode == "WAT")
                            {
                                actTypes.Add(new SelectListItem() { Text = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc", Value = "WAT", Selected = true });
                            }
                            else
                            {
                                actTypes.Add(new SelectListItem() { Text = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc", Value = "WAT" });
                            }

                            ViewBag.cbxAccountsTypes = actTypes;

                            ViewBag.Address = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.City = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.County = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.State = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.ZIPCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: Customers/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                XmlDocument xdCustomers = new XmlDocument();
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

                XmlElement xeCustomer = xdCustomers.CreateElement("customer");

                // Create the markup of a customer
                string strCustomer = "<customer-id>" + id + "</customer-id>" +
                                     "<account-number>" + collection["txtAccountNumber"] + "</account-number>" +
                                     "<account-name>" + collection["txtAccountName"] + "</account-name>" +
                                     "<meter-number>" + collection["txtMeterNumber"] + "</meter-number>" +
                                     "<account-type>" + collection["cbxAccountsTypes"].Substring(0, 3) + "</account-type>" +
                                     "<address>" + collection["txtAddress"] + "</address>" +
                                     "<city>" + collection["txtCity"] + "</city>" +
                                     "<county>" + collection["txtCounty"] + "</county>" +
                                     "<state>" + collection["txtState"] + "</state>" +
                                     "<zip-code>" + collection["txtZIPCode"] + "</zip-code>";

                xeCustomer.InnerXml = strCustomer;

                if (System.IO.File.Exists(strFileCustomers))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileCustomers, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        xdCustomers.Load(fsWaterMeters);
                    }

                    using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer");

                        foreach (XmlNode xnCustomer in xnlCustomers)
                        {
                            if (xnCustomer.FirstChild.InnerText == id.ToString())
                            {
                                xnCustomer.ParentNode.ReplaceChild(xeCustomer, xnCustomer);
                                xdCustomers.Save(fsCustomers);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: Customers/Delete/5
        public ActionResult Delete(int id)
        {
            string strMeterNumber = string.Empty;
            XmlDocument xdCustomers = new XmlDocument();
            string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

            if (System.IO.File.Exists(strFileCustomers))
            {
                using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdCustomers.Load(fsCustomers);

                    XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer-id");

                    foreach (XmlNode xnCustomer in xnlCustomers)
                    {
                        if (xnCustomer.InnerText == id.ToString())
                        {
                            ViewBag.CustomerId = xnCustomer.InnerText;
                            ViewBag.AccountNumber = xnCustomer.NextSibling.InnerText;
                            ViewBag.AccountName = xnCustomer.NextSibling.NextSibling.InnerText;
                            ViewBag.MeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                            strMeterNumber = xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;

                            string strActCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            string strAccountType = string.Empty;

                            if (strActCode == "BUS")
                            {
                                strAccountType = "BUS - General Business";
                            }
                            else if (strActCode == "RES")
                            {
                                strAccountType = "RES - Residential Household";
                            }
                            else if (strActCode == "SGO")
                            {
                                strAccountType = "SGO - Social/Government/Non - Profit Organization";
                            }
                            else if (strActCode == "UUO")
                            {
                                strAccountType = "UUO - Unidentified or Unclassified Type of Organization";
                            }
                            else if (strActCode == "WAT")
                            {
                                strAccountType = "WAT - Water Intensive Business(Laudromat, Hair Salon, Restaurant, etc";
                            }
                            else
                            {
                                strAccountType = "OTH - Other";
                            }

                            ViewBag.AccountType = strAccountType;

                            ViewBag.Address = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.City    = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.County  = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.State   = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                            ViewBag.ZIPCode = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            XmlDocument xdWaterMeters = new XmlDocument();
            string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

            if (System.IO.File.Exists(strFileWaterMeters))
            {
                using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open,
                                                                 FileAccess.Read, FileShare.Read))
                {
                    xdWaterMeters.Load(fsWaterMeters);

                    XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("meter-number");

                    foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                    {
                        if (xnWaterMeter.InnerText == strMeterNumber)
                        {
                            ViewBag.MeterDetails = xnWaterMeter.NextSibling.InnerText + " " +
                                                   xnWaterMeter.NextSibling.NextSibling.InnerText +
                                                   " (" + xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText + ")";
                            break;
                        }
                    }
                }
            }

            return View();
        }

        // POST: Customers/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here
                XmlDocument xdCustomers = new XmlDocument();
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

                if (System.IO.File.Exists(strFileCustomers))
                {
                    using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open,
                                                                     FileAccess.Read, FileShare.Read))
                    {
                        xdCustomers.Load(fsCustomers);
                    }

                    using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Truncate,
                                                                     FileAccess.Write, FileShare.Write))
                    {
                        XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("customer-id");

                        foreach (XmlNode xnCustomer in xnlCustomers)
                        {
                            if (xnCustomer.InnerText == id.ToString())
                            {
                                xdCustomers.DocumentElement.RemoveChild(xnCustomer.ParentNode);
                                xdCustomers.Save(fsCustomers);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

In the CustomersController class, right-click any part of the Delete() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Delete.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Delete Customer";
}

<h2 class="fw-bold common-font text-center">Delete Customer Account</h2>

<hr />

@using (Html.BeginForm())
{
    <div class="encloser-small common-font">
        <div class="row mb-2">
            @Html.Label("txtCustomerId", "Customer Id:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCustomerId", ViewBag.CustomerId as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtAccountNumber", "Account #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountNumber", ViewBag.AccountNumber as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtAccountName", "Account Name:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountName", ViewBag.AccountName as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterNumber", "Meter #:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterNumber", ViewBag.MeterNumber as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtMeterDetails", "Meter Details:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtMeterDetails", ViewBag.MeterDetails as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtAccountType", "Account Type:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAccountType", ViewBag.AccountType as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
        <div class="row mb-2">
            @Html.Label("txtAddress", "Address:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtAddress", ViewBag.Address as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCity", "City:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCity", ViewBag.City as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtCounty", "County:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtCounty", ViewBag.County as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtState", "State:", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtState", ViewBag.State as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>

        <div class="row mb-2">
            @Html.Label("txtZIPCode", "ZIP-Code", htmlAttributes: new { @class = "col-form-label col-md-4 fw-bold" })
            <div class="col-md-8">
                @Html.TextBox("txtZIPCode", ViewBag.ZIPCode as string,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>
    </div>

    <hr />

    <div class="encloser-small">
        <h3 class="common-font fw-bold text-center">Are you sure you want to close this customer's account?</h3>
        <div class="row mb-2">
            <div class="col-md-4">
                @Html.ActionLink("Customers", "Index", null, new { @class = "stellar" })
            </div>
            <div class="col-md-8">
                <input type="submit" name="btnDeleteCustomerAccount" value="Delete Customer's Account" class="btn btn-stellar" />
            </div>
        </div>
    </div>
}

Click the CustomersController.cs tab
To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Customers link
In the list of customers, click the Delete link that corresponds to the second record (Customer Id = 2):
Click the Delete this Customer Account button
From the AppData folder of this project, open the Customers.xml file and replace its content with Customers
Save the file
Return to your programming environment

Water Bills

Introduction

A water bill is a document that provides various pieces of information about a costumer consuming water and the amount to pay for it. In thissection, we will create objects that can assist the company in creating water bills.

Practical Learning: Introducing Water Bills

In the Solution Explorer, right-click Controllers -> Add -> Controller...
In the middle frame of the Add New Scaffolded Item dialog box, make sure MVC 5 Controller With Read/Write Actions is selected.
Click Add
In the Add Contoller dialog box, replace Default with WaterBills to get WaterBillsControllers
Press Enter

Creating a Water Bill

Practical Learning: Creating a Water Bill

In the WaterBillsControllers class, change the Create() methods as follows:

// GET: WaterBills/Create
        public ActionResult Create()
        {
            int water_bill_id = 0;
            XmlDocument xdWaterBills = new XmlDocument();
            string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

            if (System.IO.File.Exists(strFileWaterBills))
            {
                using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdWaterBills.Load(fsWaterBills);

                    XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                    foreach (XmlNode xnWaterBill in xnlWaterBills)
                    {
                        water_bill_id = int.Parse(xnWaterBill.InnerText);
                    }
                }
            }

            ViewData["WaterBillID"] = (water_bill_id + 1);

            Random rndNumber = new Random();
            ViewData["InvoiceNumber"] = rndNumber.Next(100001, 999999).ToString();

            return View();
        }

        // POST: WaterBills/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                int bill_id = -1;
                bool customerIsValid = false;
                string meterNumber = string.Empty;
                XmlDocument xdCustomers = new XmlDocument();
                XmlDocument xdWaterBills = new XmlDocument();
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");
                string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

                // Make sure the user provided an account number for the customer, ...
                if (!string.IsNullOrEmpty(collection["AccountNumber"]))
                {
                    // If the user provided an account number, find out if an XML file for customers was already created.
                    if (System.IO.File.Exists(strFileCustomers))
                    {
                        // If a file for customers exists, open it
                        using (FileStream fsCustomers = new FileStream(strFileCustomers, FileMode.Open,
                                                                                         FileAccess.Read,
                                                                                         FileShare.Read))
                        {
                            // Store the list of customers in an XML document
                            xdCustomers.Load(fsCustomers);

                            // Create a list of customers nodes that use the account number provided by the user
                            XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("account-number");

                            // Visit each node of the list of elements
                            foreach (XmlNode xnCustomer in xnlCustomers)
                            {
                                // If you find a customer that is the same as the account number from the form, ...
                                if (xnCustomer.InnerText == collection["AccountNumber"])
                                {
                                    // ... make a note
                                    customerIsValid = true;
                                    // and get the meter number used by that customer
                                    meterNumber = xnCustomer.NextSibling.InnerText;
                                }
                            }
                        }
                    }
                }

                if (customerIsValid == true)
                {
                    // It appears that the user provided a valid customer account number.
                    // If an XML file for water bills was previously created, ...
                    if (System.IO.File.Exists(strFileWaterBills))
                    {
                        // ... open it ...
                        using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.OpenOrCreate,
                                                                                           FileAccess.ReadWrite,
                                                                                           FileShare.ReadWrite))
                        {
                            // ... and put the records in the DOM
                            xdWaterBills.Load(fsWaterBills);

                            XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                            foreach (XmlNode xnWaterBill in xnlWaterBills)
                            {
                                bill_id = int.Parse(xnWaterBill.InnerText);
                            }
                        }
                    }
                    else
                    {
                        // If there is no XML file yet for the customers, create skeleton code for an XML document
                        xdWaterBills.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                             "<water-bills></water-bills>");
                        bill_id = 0;
                    }

                    // Get ready to create an XML element named water-bill
                    XmlElement xeWaterBill = xdWaterBills.CreateElement("invoice");

                    bill_id++;

                    // Create the markup of the XML water bill
                    xeWaterBill.InnerXml = "<water-bill-id>"            + bill_id + "</water-bill-id>"        +
                                           "<invoice-number>"           + collection["InvoiceNumber"]         + "</invoice-number>"           +
                                           "<account-number>"           + collection["AccountNumber"]         + "</account-number>"           +
                                           "<meter-reading-start-date>" + collection["MeterReadingStartDate"] + "</meter-reading-start-date>" +
                                           "<meter-reading-end-date>"   + collection["MeterReadingEndDate"]   + "</meter-reading-end-date>"   +
                                           "<billing-days>"             + collection["BillingDays"]           + "</billing-days>"             +
                                           "<counter-reading-start>"    + collection["CounterReadingStart"]   + "</counter-reading-start>"    +
                                           "<counter-reading-end>"      + collection["CounterReadingEnd"]     + "</counter-reading-end>"      +
                                           "<total-hcf>"                + collection["TotalHCF"]              + "</total-hcf>"                +
                                           "<total-gallons>"            + collection["TotalGallons"]          + "</total-gallons>"            +
                                           "<first-15-hcf>"             + collection["First15HCF"]            + "</first-15-hcf>"             +
                                           "<next-10-hcf>"              + collection["Next10HCF"]             + "</next-10-hcf>"              +
                                           "<remaining-hcf>"            + collection["RemainingHCF"]          + "</remaining-hcf>"            +
                                           "<sewer-charges>"            + collection["SewerCharges"]          + "</sewer-charges>"            +
                                           "<storm-charges>"            + collection["StormCharges"]          + "</storm-charges>"            + 
                                           "<water-usage-charges>"      + collection["WaterUsageCharges"]     + "</water-usage-charges>"      +
                                           "<total-charges>"            + collection["TotalCharges"]          + "</total-charges>"            +
                                           "<local-taxes>"              + collection["LocalTaxes"]            + "</local-taxes>"              +
                                           "<state-taxes>"              + collection["StateTaxes"]            + "</state-taxes>"              +
                                           "<payment-due-date>"         + collection["PaymentDueDate"]        + "</payment-due-date>"         +
                                           "<amount-due>"               + collection["AmountDue"]             + "</amount-due>"               +
                                           "<late-payment-due-date>"    + collection["LatePaymentDueDate"]    + "</late-payment-due-date>"    +
                                           "<late-amount-due>"          + collection["LateAmountDue"]         + "</late-amount-due>";

                    // Add the new node to the root
                    xdWaterBills.DocumentElement.AppendChild(xeWaterBill);

                    // Save the (new version of the) XML file
                    using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Create, FileAccess.Write, FileShare.Write))
                    {
                        xdWaterBills.Save(fsWaterBills);
                    }

                    // We also want to update the counter value on the water meter with the new Counter Reading End value
                    XmlDocument xdWaterMeters = new XmlDocument();
                    string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                    if (System.IO.File.Exists(strFileWaterMeters))
                    {
                        using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
                        {
                            xdWaterMeters.Load(fsWaterMeters);
                        }

                        XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("meter-id");

                        using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Truncate, FileAccess.ReadWrite, FileShare.ReadWrite))
                        {
                            foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                            {
                                if (xnWaterMeter.NextSibling.InnerText == meterNumber)
                                {
                                    xnWaterMeter.ParentNode.InnerXml = "<meter-id>"         + xnWaterMeter.InnerText + "</meter-id>" +
                                                                       "<meter-number>"     + meterNumber + "</meter-number>" +
                                                                       "<make>"             + xnWaterMeter.NextSibling.NextSibling.InnerText + "</make>" +
                                                                       "<model>"            + xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText + "</model>" +
                                                                       "<meter-size>"       + xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.InnerText + "</meter-size>" +
                                                                       "<date-last-update>" + xnWaterMeter.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText + "</date-last-update>" +
                                                                       "<counter-value>"    + collection["CounterReadingEnd"] + "</counter-value>";
                                    xdWaterMeters.Save(fsWaterMeters);
                                    break;
                                }
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

In the WaterBillsController class, right-click one of the Create() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC 5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name text box is displaying Create.
Click Add

Change the document as follows:

@{
    ViewBag.Title = "Prepare Customer Water Bill";
}

<div class="push-down">
    <h2>Prepare Customer Water Bill</h2>
</div>

<hr />

@using (Html.BeginForm())
{
    <div class="form-horizontal">
        <div class="form-group">
            <label for="billNbr" class="control-label col-md-4 caption">Water Bill ID:</label>
            <div class="col-md-8">
                @Html.TextBox("WaterBillID", null,
                              htmlAttributes: new { @class = "form-control", id = "billNbr", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label for="invoiceNbr" class="control-label col-md-4 caption">Invoice #:</label>
            <div class="col-md-8">
                @Html.TextBox("InvoiceNumber", null,
                              htmlAttributes: new { @class = "form-control", id = "invoiceNbr" })
            </div>
        </div>
        <div class="form-group">
            <label for="acntNbr" class="control-label col-md-4 caption">Customer Account #:</label>
            <div class="col-md-8">
                @Html.TextBox("AccountNumber", null,
                              htmlAttributes: new { @class = "form-control", id = "acntNbr" })
            </div>
        </div>

        <div class="form-group">
            <label class="control-label col-md-4 caption">Customer Name:</label>
            <div class="col-md-8">
                @Html.TextBox("CustomerName", null,
                              new { @class = "form-control", id = "custName", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4 caption">Customer Address:</label>
            <div class="col-md-8">
                @Html.TextBox("CustomerAddress", null,
                              new { @class = "form-control", id = "adrs", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">
                @Html.TextBox("CustomerCity", null,
                              new { @class = "form-control", id = "city", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerCounty", null,
                              new { @class = "form-control", id = "county", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerState", null,
                              new { @class = "form-control", id = "state", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerZIPCode", null,
                              new { @class = "form-control", id = "zip", disabled = "disabled" })
            </div>
        </div>

        <div class="form-group">
            <label class="control-label col-md-4 caption">Meter Details:</label>
            <div class="col-md-125">
                @Html.TextBox("MeterNumber", null,
                              new { @class = "form-control", id = "mtrNbr", disabled = "disabled" })
            </div>
            <div class="col-md-6">
                @Html.TextBox("MeterDetails", null,
                              htmlAttributes: new { @class = "form-control", id = "meterDetails", disabled = "disabled" })
            </div>
        </div>
        <hr />
        <div class="form-group">
            <label for="mrsd" class="control-label col-md-4 caption">Meter Reading Start Date:</label>
            <div class="col-md-2">
                @Html.TextBox("MeterReadingStartDate", null,
                              htmlAttributes: new { @class = "form-control", id = "mrsd" })
            </div>
            <label for="mred" class="control-label col-md-125 caption">Meter Reading End Date:</label>
            <div class="col-md-125">
                @Html.TextBox("MeterReadingEndDate", null,
                              htmlAttributes: new { @class = "form-control", type = "date", id = "mred" })
            </div>
            <label for="days" class="control-label col-md-2 caption">Billing Days:</label>
            <div class="col-md-1">
                @Html.TextBox("BillingDays", null, htmlAttributes: new { @class = "form-control", id = "days" })
            </div>
        </div>

        <div class="form-group">
            <label for="crs" class="control-label col-md-4 caption">Counter Reading Start:</label>
            <div class="col-md-2">
                @Html.TextBox("CounterReadingStart", null, htmlAttributes: new { @class = "form-control", id = "crs" })
            </div>
            <label for="cre" class="control-label col-md-125 caption">Current Meter Reading:</label>
            <div class="col-md-125">
                @Html.TextBox("CounterReadingEnd", null, htmlAttributes: new { @class = "form-control", id = "cre" })
            </div>
            <label for="thcf" class="control-label col-md-2 caption">Total HCF:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalHCF", null, htmlAttributes: new { @class = "form-control", id = "thcf" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-2">&nbsp;</div>
            <label class="control-label col-md-125">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="gallons" class="control-label col-md-2 caption">Total Gallons:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalGallons", null, htmlAttributes: new { @class = "form-control", id = "gallons" })
            </div>
        </div>

        <div class="form-group">
            <label for="f15HCF" class="control-label col-md-4 caption">1st 15 HCF at $3.6121:</label>
            <div class="col-md-2">
                @Html.TextBox("First15HCF", null,
                              htmlAttributes: new { @class = "form-control", id = "f15HCF" })
            </div>
            <label for="next10HCF" class="control-label col-md-125 caption">Next 10 HCF at $3.9180:</label>
            <div class="col-md-125">
                @Html.TextBox("Next10HCF", null,
                              htmlAttributes: new { @class = "form-control", id = "next10HCF" })
            </div>
            <label for="remHCF" class="control-label col-md-2 caption">Remaining HCF at $4.2763:</label>
            <div class="col-md-1">
                @Html.TextBox("RemainingHCF", null, htmlAttributes: new { @class = "form-control", id = "remHCF" })
            </div>
        </div>
        <div class="form-group">
            <label for="sewerCharges" class="control-label col-md-4 caption">Sewer Charges:</label>
            <div class="col-md-2">
                @Html.TextBox("SewerCharges", null,
                              htmlAttributes: new { @class = "form-control", id = "sewerCharges" })
            </div>
            <label for="stormCharges" class="control-label col-md-125 caption">Storm Charges:</label>
            <div class="col-md-125">
                @Html.TextBox("StormCharges", null,
                              htmlAttributes: new { @class = "form-control", id = "stormCharges" })
            </div>
            <label for="wuc" class="control-label col-md-2 caption">Water Usage Charges:</label>
            <div class="col-md-1">
                @Html.TextBox("WaterUsageCharges", null, htmlAttributes: new { @class = "form-control", id = "wuc" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-2">&nbsp;</div>
            <label class="control-label col-md-125">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="totalCharges" class="control-label col-md-2 caption">Total Charges:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalCharges", null, htmlAttributes: new { @class = "form-control", id = "totalCharges" })
            </div>
        </div>
        <hr />
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="localTaxes" class="control-label col-md-125 caption">Local Taxes:</label>
            <div class="col-md-125">
                @Html.TextBox("LocalTaxes", null,
                              htmlAttributes: new { @class = "form-control", id = "localTaxes" })
            </div>
            <label for="stateTaxes" class="control-label col-md-125 caption">State Taxes:</label>
            <div class="col-md-125">
                @Html.TextBox("StateTaxes", null, htmlAttributes: new { @class = "form-control", id = "stateTaxes" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="pdd" class="control-label col-md-125 caption">Payment Due Date:</label>
            <div class="col-md-125">
                @Html.TextBox("PaymentDueDate", null,
                              htmlAttributes: new { @class = "form-control", type = "date", id = "pdd" })
            </div>
            <label for="amtDue" class="control-label col-md-125 caption">Amount Due:</label>
            <div class="col-md-125">
                @Html.TextBox("AmountDue", null,
                              htmlAttributes: new { @class = "form-control", id = "amtDue" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4 caption">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="lpdd" class="control-label col-md-125 caption">Late Payment Due Date:</label>
            <div class="col-md-125">
                @Html.TextBox("LatePaymentDueDate", null,
                              htmlAttributes: new { @class = "form-control", id = "lpdd" })
            </div>
            <label for="lateAmtDue" class="control-label col-md-125 caption">Late Amount Due:</label>
            <div class="col-md-125">
                @Html.TextBox("LateAmountDue", null, htmlAttributes: new { @class = "form-control", id = "lateAmtDue" })
            </div>
        </div>

        <div class="form-group text-center">
            <label class="control-label col-md-5">
                @Html.ActionLink("Water Bills", "Index", null, htmlAttributes: new { @class = "water-nav" })
            </label>
            <div class="col-md-7">
                <input type="submit" value="Save Water Bill" class="btn btn-primary" />
            </div>
        </div>
    </div>
}

@Scripts.Render("~/bundles/jquery")

<script type="text/javascript">
    $(document).ready(function () {
        $("#acntNbr").blur(function (event) {
            var connection = {
                method: "GET",
                dataType: "xml",
                url: "/WaterDistribution/Customers.xml"
            };
            $.ajax(connection).
                done(function (data) {
                    var clients = $(data).find("customer");
                    clients.each(function () {
                        if ($(this).find("account-number").text() === $("#acntNbr").val()) {
                            $("#mtrNbr").val($(this).find("meter-number").text());
                            $("#custName").val($(this).find("first-name").text() + " " + $(this).find("last-name").text());
                            $("#adrs").val($(this).find("address").text());
                            $("#city").val($(this).find("city").text());
                            $("#county").val($(this).find("county").text());
                            $("#state").val($(this).find("state").text());
                            $("#zip").val($(this).find("zip-code").text());
                        }
                    });
                });

            connection = {
                method: "GET",
                dataType: "xml",
                url: "/WaterDistribution/WaterMeters.xml"
            };
            $.ajax(connection).
                done(function (data) {
                    var waterMeters = $(data).find("water-meter");
                    waterMeters.each(function () {
                        if ($(this).find("meter-number").text() === $("#mtrNbr").val()) {
                            $("#meterDetails").val($(this).find("make").text() + " " + $(this).find("model").text() + " (" + $(this).find("meter-size").text() + ")");
                            $("#mrsd").val($(this).find("date-last-update").text());
                            $("#crs").val($(this).find("counter-value").text());
                        }
                    });
                });

            connection = {
                method: "GET",
                dataType: "xml",
                url: "/WaterDistribution/WaterBills.xml"
            };
            $.ajax(connection).
                done(function (data) {
                    var invoices = $(data).find("invoice");
                    invoices.each(function () {
                        if ($(this).find("account-number").text() === $("#acntNbr").val()) {
                            $("#mrsd").val($(this).find("meter-reading-end-date").text());
                            $("#crs").val($(this).find("counter-reading-end").text());
                        }
                    });
                });
        }); // Account # Lost Focus

        $("#mred").change(function (event) {
            var meterReadingStartDate = Date.parse($("#mrsd").val());
            var meterReadingEndDate = Date.parse($("#mred").val());

            var days = (meterReadingEndDate - meterReadingStartDate) / 86400000;

            $("#days").val(days.toFixed());
        }); // Meter Reading End Date Lost Focus

        $("#cre").focusout(function (event) {
            var counterReadingStart = parseInt($("#crs").val());
            var counterReadingEnd = parseInt($("#cre").val());
            var totalHCF = counterReadingEnd - counterReadingStart;
            var gallons = totalHCF * 748; // 748.05

            var first15HCF = totalHCF * 3.612;
            var next10HCF = 0, remainingHCF = 0;

            if (totalHCF <= 15) {
                first15HCF = totalHCF * 3.612;
                next10HCF = 0;
                remainingHCF = 0;
            }
            else if (totalHCF <= 25) {
                first15HCF = 15 * 3.612;
                next10HCF = (totalHCF - 15) * 3.918;
                remainingHCF = 0;
            }
            else {
                first15HCF = 15 * 3.612;
                next10HCF = 10 * 3.918;
                remainingHCF = (totalHCF - 25) * 2.2763;
            }

            var waterUsageCharges = first15HCF + next10HCF + remainingHCF;
            var sewerCharges      = waterUsageCharges * 0.252;
            var stormCharges      = waterUsageCharges * 0.0025;
            var totalCharges      = waterUsageCharges + sewerCharges + stormCharges;
            var localTaxes        = totalCharges * 0.0152;
            var stateTaxes        = totalCharges * 0.005;
            var amountDue         = totalCharges + localTaxes + stateTaxes;

            $("#thcf").val(totalHCF.toFixed());
            $("#gallons").val(gallons.toFixed());
            $("#amtDue").val(amountDue.toFixed(2));
            $("#f15HCF").val(first15HCF.toFixed(2));
            $("#next10HCF").val(next10HCF.toFixed(2));
            $("#remHCF").val(remainingHCF.toFixed(2));
            $("#wuc").val(waterUsageCharges.toFixed(2));
            $("#stateTaxes").val(stateTaxes.toFixed(2));
            $("#localTaxes").val(localTaxes.toFixed(2));
            $("#sewerCharges").val(sewerCharges.toFixed(2));
            $("#stormCharges").val(stormCharges.toFixed(2));
            $("#totalCharges").val(totalCharges.toFixed(2));
            $("#lateAmtDue").val((amountDue + 8.95).toFixed(2));
        }); // Counter Reading End Lost Focus
    }); // Document.Ready
</script>

Click the WaterBillsController.cs tab to return to the controller
Click the CustomersController.cs tab
In the CustomersController class, right-click one of the Create() methods and click Add View...
In the Add New Scaffolded Item dialog box, make sure MVC5 View is selected.
Click Add
In the Add View dialog box, make sure the View Name combo box is displaying Create.
Click Add

Reviewing a Water Bill

Practical Learning: Reviewing a Water Bill

Click the WaterBillsController.cs tab


using System.Xml;
using System.Web.Mvc;
using System.Collections.Generic;

namespace StellarWaterPoint1.Controllers
{
    public class WaterBillsController : Controller
    {
        // GET: WaterBills
        public ActionResult Index()
        {
            XmlDocument xdWaterBills = new XmlDocument();
            string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

            if (System.IO.File.Exists(strFileWaterBills))
            {
                using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdWaterBills.Load(fsWaterBills);
                }

                if (xdWaterBills.DocumentElement.ChildNodes.Count > 0)
                {
                    ViewData["Invoices"] = xdWaterBills.DocumentElement.ChildNodes;
                }
                else
                {
                     ViewData["Invoices"] = null;
                }
            }

            return View();
        }

        // GET: WaterBills/Details/5
        public ActionResult Details(int id)
        {
            XmlDocument xdWaterBills = new XmlDocument();
            string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

            if (System.IO.File.Exists(strFileWaterBills))
            {
                using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdWaterBills.Load(fsWaterBills);

                    XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                    foreach (XmlNode xnWaterBill in xnlWaterBills)
                    {
                        if (xnWaterBill.InnerText == id.ToString())
                        {
                             ViewData["WaterBillID"]           = xnWaterBill.InnerText;
                             ViewData["InvoiceNumber"]         = xnWaterBill.NextSibling.InnerText;
                             ViewData["AccountNumber"]         = xnWaterBill.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingStartDate"] = xnWaterBill.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingEndDate"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["BillingDays"]           = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingStart"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingEnd"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalHCF"]              = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalGallons"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["First15HCF"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["Next10HCF"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["RemainingHCF"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["SewerCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StormCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["WaterUsageCharges"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LocalTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StateTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDueDate"]        = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["AmountDue"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LatePaymentDueDate"]    = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LateAmountDue"]         = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        

        // GET: WaterBills/Edit/5
        public ActionResult Edit(int id)
        {
            XmlDocument xdWaterBills = new XmlDocument();
            string strAccountNumber = string.Empty, strMeterNumber = string.Empty;
            string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

            if (System.IO.File.Exists(strFileWaterBills))
            {
                using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdWaterBills.Load(fsWaterBills);

                    XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                    foreach (XmlNode xnWaterBill in xnlWaterBills)
                    {
                        if (xnWaterBill.InnerText == id.ToString())
                        {
                             ViewData["WaterBillID"]           = xnWaterBill.InnerText;
                             ViewData["InvoiceNumber"]         = xnWaterBill.NextSibling.InnerText;
                             ViewData["AccountNumber"]         = xnWaterBill.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingStartDate"] = xnWaterBill.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingEndDate"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["BillingDays"]           = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingStart"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingEnd"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalHCF"]              = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalGallons"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["First15HCF"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["Next10HCF"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["RemainingHCF"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["SewerCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StormCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["WaterUsageCharges"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LocalTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StateTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDueDate"]        = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["AmountDue"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LatePaymentDueDate"]    = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LateAmountDue"]         = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;

                            strAccountNumber = xnWaterBill.NextSibling.NextSibling.InnerText;
                        }
                    }
                }

                XmlDocument xdCustomers = new XmlDocument();
                string strFileCustomers = Server.MapPath("/AppData/Customers.xml");

                if (System.IO.File.Exists(strFileCustomers))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileCustomers, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        xdCustomers.Load(fsWaterMeters);

                        XmlNodeList xnlCustomers = xdCustomers.GetElementsByTagName("account-number");

                        foreach (XmlNode xnCustomer in xnlCustomers)
                        {
                            if (xnCustomer.InnerText == strAccountNumber)
                            {
                                 ViewData["AccountNumber"]   = xnCustomer.InnerText;
                                 ViewData["MeterNumber"]     = xnCustomer.NextSibling.InnerText;
                                 ViewData["CustomerName"]    = xnCustomer.NextSibling.NextSibling.InnerText + " " +
                                                               xnCustomer.NextSibling.NextSibling.NextSibling.InnerText;
                                 ViewData["CustomerAddress"] = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                                 ViewData["CustomerCity"]    = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                                 ViewData["CustomerCounty"]  = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                                 ViewData["CustomerState"]   = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                                 ViewData["CustomerZIPCode"] = xnCustomer.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;

                                strMeterNumber = xnCustomer.NextSibling.InnerText;
                            }
                        }
                    }
                }

                XmlDocument xdWaterMeters = new XmlDocument();
                string strFileWaterMeters = Server.MapPath("/AppData/WaterMeters.xml");

                if (System.IO.File.Exists(strFileWaterMeters))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterMeters, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        xdWaterMeters.Load(fsWaterMeters);

                        XmlNodeList xnlWaterMeters = xdWaterMeters.GetElementsByTagName("meter-number");

                        foreach (XmlNode xnWaterMeter in xnlWaterMeters)
                        {
                            if (xnWaterMeter.InnerText == strMeterNumber)
                            {
                                 ViewData["MeterDetails"] = xnWaterMeter.InnerText + " " +
                                                       xnWaterMeter.NextSibling.InnerText + " (" +
                                                       xnWaterMeter.NextSibling.NextSibling.NextSibling.InnerText + ")";
                            }
                        }
                    }
                }
            }

            return View();
        }

        // POST: WaterBills/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                XmlDocument xdWaterBills = new XmlDocument();
                string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

                if (System.IO.File.Exists(strFileWaterBills))
                {
                    using (FileStream fsWaterMeters = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        xdWaterBills.Load(fsWaterMeters);
                    }

                    XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                    using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Truncate, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        foreach (XmlNode xnWaterBill in xnlWaterBills)
                        {
                            if (xnWaterBill.InnerText == id.ToString())
                            {
                                xnWaterBill.ParentNode.InnerXml = "<water-bill-id>" + id + "</water-bill-id>" +
                                                                  "<invoice-number>" + collection["InvoiceNumber"] + "</invoice-number>" +
                                                                  "<account-number>" + collection["AccountNumber"] + "</account-number>" +
                                                                  "<meter-reading-start-date>" + collection["MeterReadingStartDate"] + "</meter-reading-start-date>" +
                                                                  "<meter-reading-end-date>" + collection["MeterReadingEndDate"] + "</meter-reading-end-date>" +
                                                                  "<billing-days>" + collection["BillingDays"] + "</billing-days>" +
                                                                  "<counter-reading-start>" + collection["CounterReadingStart"] + "</counter-reading-start>" +
                                                                  "<counter-reading-end>" + collection["CounterReadingEnd"] + "</counter-reading-end>" +
                                                                  "<total-hcf>" + collection["TotalHCF"] + "</total-hcf>" +
                                                                  "<total-gallons>" + collection["TotalGallons"] + "</total-gallons>" +
                                                                  "<first-15-hcf>" + collection["First15HCF"] + "</first-15-hcf>" +
                                                                  "<next-10-hcf>" + collection["Next10HCF"] + "</next-10-hcf>" +
                                                                  "<remaining-hcf>" + collection["RemainingHCF"] + "</remaining-hcf>" +
                                                                  "<sewer-charges>" + collection["SewerCharges"] + "</sewer-charges>" +
                                                                  "<storm-charges>" + collection["StormCharges"] + "</storm-charges>" +
                                                                  "<water-usage-charges>" + collection["WaterUsageCharges"] + "</water-usage-charges>" +
                                                                  "<total-charges>" + collection["TotalCharges"] + "</total-charges>" +
                                                                  "<local-taxes>" + collection["LocalTaxes"] + "</local-taxes>" +
                                                                  "<state-taxes>" + collection["StateTaxes"] + "</state-taxes>" +
                                                                  "<payment-due-date>" + collection["PaymentDueDate"] + "</payment-due-date>" +
                                                                  "<amount-due>" + collection["AmountDue"] + "</amount-due>" +
                                                                  "<late-payment-due-date>" + collection["LatePaymentDueDate"] + "</late-payment-due-date>" +
                                                                  "<late-amount-due>" + collection["LateAmountDue"] + "</late-amount-due>";

                                xdWaterBills.Save(fsWaterBills);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: WaterBills/Delete/5
        public ActionResult Delete(int id)
        {
            XmlDocument xdWaterBills = new XmlDocument();
            string strAccountNumber = string.Empty, strMeterNumber = string.Empty;
            string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

            if (System.IO.File.Exists(strFileWaterBills))
            {
                using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdWaterBills.Load(fsWaterBills);

                    XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("water-bill-id");

                    foreach (XmlNode xnWaterBill in xnlWaterBills)
                    {
                        if (xnWaterBill.InnerText == id.ToString())
                        {
                             ViewData["WaterBillID"]           = xnWaterBill.InnerText;
                             ViewData["InvoiceNumber"]         = xnWaterBill.NextSibling.InnerText;
                             ViewData["AccountNumber"]         = xnWaterBill.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingStartDate"] = xnWaterBill.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["MeterReadingEndDate"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["BillingDays"]           = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingStart"]   = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["CounterReadingEnd"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalHCF"]              = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalGallons"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["First15HCF"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["Next10HCF"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["RemainingHCF"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["SewerCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StormCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["WaterUsageCharges"]     = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["TotalCharges"]          = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LocalTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["StateTaxes"]            = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDueDate"]        = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["AmountDue"]             = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LatePaymentDueDate"]    = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["LateAmountDue"]         = xnWaterBill.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;

                            strAccountNumber = xnWaterBill.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: WaterBills/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here
                XmlDocument xdWaterBills = new XmlDocument();
                string strFileWaterBills = Server.MapPath("/AppData/WaterBills.xml");

                if (System.IO.File.Exists(strFileWaterBills))
                {
                    using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        xdWaterBills.Load(fsWaterBills);
                    }

                    using (FileStream fsWaterBills = new FileStream(strFileWaterBills, FileMode.Truncate, FileAccess.Write, FileShare.Write))
                    {
                        XmlNodeList xnlWaterBills = xdWaterBills.GetElementsByTagName("invoice");

                        foreach (XmlNode xnWaterBill in xnlWaterBills)
                        {
                            if (xnWaterBill.FirstChild.InnerText == id.ToString())
                            {
                                xnWaterBill.ParentNode.RemoveChild(xnWaterBill);
                                xdWaterBills.Save(fsWaterBills);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

In the document, right-click Index() and click Add View...
In the Add View dialog box, make sure the View Name text is displaying Index. Click Add

Change the document as follows:

@{
    ViewBag.Title = "Customers Water Bills";
}

<div class="push-down">
    <h2 class="common-font bold text-center">Customers Water Bills</h2>
</div>

<hr />

<table class="table table-striped common-font">
    <tr>
        <th class="fw-bold text-center" colspan="2">Identification</th>
        <th class="fw-bold text-center" colspan="4">Meter Reading</th>
        <th class="fw-bold text-center" colspan="2">Counter Reading</th>
        <th class="fw-bold text-center" colspan="5">HCF Summary</th>
        <th class="fw-bold text-center" colspan="4">Charges</th>
        <th class="fw-bold text-center" colspan="2">Taxes</th>
        <th class="fw-bold text-center" colspan="4">Payment</th>
        <th>&nbsp;</th>
    </tr>
    <tr>
        <th class="fw-bold">Bill ID</th>
        <th class="fw-bold">Invoice #</th>
        <th class="fw-bold">Account #</th>
        <th class="fw-bold">Start Date</th>
        <th class="fw-bold">End Date</th>
        <th class="fw-bold">Days</th>
        <th class="fw-bold">Start</th>
        <th class="fw-bold">End</th>
        <th class="fw-bold">Total</th>
        <th class="fw-bold">Gallons</th>
        <th class="fw-bold">First 15</th>
        <th class="fw-bold">Next 10</th>
        <th class="fw-bold">Remaining</th>
        <th class="fw-bold">Sewer</th>
        <th class="fw-bold">Storm</th>
        <th class="fw-bold">Water Usage</th>
        <th class="fw-bold">Total</th>
        <th class="fw-bold">Local</th>
        <th class="fw-bold">State</th>
        <th class="fw-bold">Due Date</th>
        <th class="fw-bold">Amount</th>
        <th class="fw-bold">Late Pmt</th>
        <th class="fw-bold">Late Amt</th>
        <th>&nbsp;</th>
    </tr>

    @if (ViewBag.Invoices != null)
    {
        foreach (System.Xml.XmlNode bill in ViewData["Invoices"] as System.Xml.XmlNodeList)
        {
            <tr>
                <td class="text-center">@bill.FirstChild.InnerText</td>
                <td>@bill.FirstChild.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@bill.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>
                    @Html.ActionLink("Update", "Edit", new { id = @bill.FirstChild.InnerText }) <span style="color: aquamarine">::</span>
                    @Html.ActionLink("Review", "Details", new { id = @bill.FirstChild.InnerText }) <span style="color: aquamarine">::</span>
                    @Html.ActionLink("Remove", "Delete", new { id = @bill.FirstChild.InnerText })
                </td>
            </tr>
        }
    }
</table>

<p class="text-center">@Html.ActionLink("New Water Bill", "Create", null, htmlAttributes: new { @class = "water-nav" })</p>

Click the WaterBillsController.cs tab to access its class
In the class, right-click Details() and click Add View...
Makre sure the View Name text box is displaying Details. Click Add

Change the document as follows:

@{
    ViewBag.Title = "Water Bill Details";
}

<div class="push-down">
    <h2>Water Bill Details</h2>
</div>

<hr />

<div class="containment">
    <dl class="dl-horizontal common-font caption">
        <dt class="fw-bold">Water Bill ID:</dt>
        <dd>@ViewData["WaterBillID"]</dd>
        <dt class="fw-bold">Invoice #:</dt>
        <dd>@ViewData["InvoiceNumber"]</dd>
        <dt class="fw-bold">Account #:</dt>
        <dd>@ViewData["AccountNumber"]</dd>
        <dt class="fw-bold">Meter Reading Start Date:</dt>
        <dd>@ViewData["MeterReadingStartDate"]</dd>
        <dt class="fw-bold">Meter Reading End Date:</dt>
        <dd>@ViewData["MeterReadingEndDate"]</dd>
        <dt class="fw-bold">Billing Days:</dt>
        <dd>@ViewData["BillingDays"]</dd>
        <dt class="fw-bold">Counter Reading Start:</dt>
        <dd>@ViewData["CounterReadingStart"]</dd>
        <dt class="fw-bold">Counter Reading End:</dt>
        <dd>@ViewData["CounterReadingEnd"]</dd>
        <dt class="fw-bold">Total HCF:</dt>
        <dd>@ViewData["TotalHCF"]</dd>
        <dt class="fw-bold">Total Gallons:</dt>
        <dd>@ViewData["TotalGallons"]</dd>
        <dt class="fw-bold">First 15 HCF:</dt>
        <dd>@ViewData["First15HCF"]</dd>
        <dt class="fw-bold">Next 10 HCF:</dt>
        <dd>@ViewData["Next10HCF"]</dd>
        <dt class="fw-bold">Remaining HCF:</dt>
        <dd>@ViewData["RemainingHCF"]</dd>
        <dt class="fw-bold">Sewer Charges:</dt>
        <dd>@ViewData["SewerCharges"]</dd>
        <dt class="fw-bold">Storm Charges:</dt>
        <dd>@ViewData["StormCharges"]</dd>
        <dt class="fw-bold">Water Usage Charges:</dt>
        <dd>@ViewData["WaterUsageCharges"]</dd>
        <dt class="fw-bold">Total Charges:</dt>
        <dd>@ViewData["TotalCharges"]</dd>
        <dt class="fw-bold">Local Taxes:</dt>
        <dd>@ViewData["LocalTaxes"]</dd>
        <dt class="fw-bold">State Taxes:</dt>
        <dd>@ViewData["StateTaxes"]</dd>
        <dt class="fw-bold">Payment Due Date:</dt>
        <dd>@ViewData["PaymentDueDate"]</dd>
        <dt class="fw-bold">Amount Due:</dt>
        <dd>@ViewData["AmountDue"]</dd>
        <dt class="fw-bold">Late Payment Due Date:</dt>
        <dd>@ViewData["LatePaymentDueDate"]</dd>
        <dt class="fw-bold">Late Amount Due:</dt>
        <dd>@ViewData["LateAmountDue"]</dd>
    </dl>
</div>

<p class="text-center">
    @Html.ActionLink("Edit/Update Customer Water Bill", "Edit",
                     new { id = ViewData["WaterBillID"] }, htmlAttributes: new { @class = "water -nav" }) :: 
    @Html.ActionLink("Customers Water Bills", "Index",
                     null, new { @class = "water-nav" })
</p>

In the class, right-click one of the Edit() methods and click Add View...
In the Add View dialog box, make sure the View Name text box is displaying Edit. Click Add

Create a form as follows:

@{
    ViewBag.Title = "Edit/Update Water Bill";
}

<div class="push-down">
    <h2>Edit/Update Water Bill</h2>
</div>

<hr />

@using (Html.BeginForm())
{
    <div class="form-horizontal">
        <div class="form-group">
            <label for="billNbr" class="control-label col-md-4 caption">Water Bill ID:</label>
            <div class="col-md-8">
                @Html.TextBox("WaterBillID", null,
                              htmlAttributes: new { @class = "form-control", id = "billNbr", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label for="invoiceNbr" class="control-label col-md-4 caption">Invoice #:</label>
            <div class="col-md-8">
                @Html.TextBox("InvoiceNumber", null,
                              htmlAttributes: new { @class = "form-control", id = "invoiceNbr" })
            </div>
        </div>
        <div class="form-group">
            <label for="acntNbr" class="control-label col-md-4 caption">Customer Account #:</label>
            <div class="col-md-8">
                @Html.TextBox("AccountNumber", null,
                              htmlAttributes: new { @class = "form-control", id = "acntNbr" })
            </div>
        </div>

        <div class="form-group">
            <label class="control-label col-md-4 caption">Customer Name:</label>
            <div class="col-md-8">
                @Html.TextBox("CustomerName", null,
                              new { @class = "form-control", id = "custName", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4 caption">Customer Address:</label>
            <div class="col-md-8">
                @Html.TextBox("CustomerAddress", null,
                              new { @class = "form-control", id = "adrs", disabled = "disabled" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">
                @Html.TextBox("CustomerCity", null,
                              new { @class = "form-control", id = "city", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerCounty", null,
                              new { @class = "form-control", id = "county", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerState", null,
                              new { @class = "form-control", id = "state", disabled = "disabled" })
            </div>
            <div class="col-md-125">
                @Html.TextBox("CustomerZIPCode", null,
                              new { @class = "form-control", id = "zip", disabled = "disabled" })
            </div>
        </div>

        <div class="form-group">
            <label class="control-label col-md-4 caption">Meter Details:</label>
            <div class="col-md-125">
                @Html.TextBox("MeterNumber", null,
                              new { @class = "form-control", id = "mtrNbr", disabled = "disabled" })
            </div>
            <div class="col-md-6">
                @Html.TextBox("MeterDetails", null,
                              new { @class = "form-control", id = "meterDetails", disabled = "disabled" })
            </div>
        </div>
        <hr />
        <div class="form-group">
            <label for="mrsd" class="control-label col-md-4 caption">Meter Reading Start Date:</label>
            <div class="col-md-2">
                @Html.TextBox("MeterReadingStartDate", null,
                              htmlAttributes: new { @class = "form-control", id = "mrsd" })
            </div>
            <label for="mred" class="control-label col-md-125 caption">Meter Reading End Date:</label>
            <div class="col-md-125">
                @Html.TextBox("MeterReadingEndDate", null,
                              htmlAttributes: new { @class = "form-control", type = "date", id = "mred" })
            </div>
            <label for="days" class="control-label col-md-2 caption">Billing Days:</label>
            <div class="col-md-1">
                @Html.TextBox("BillingDays", null, htmlAttributes: new { @class = "form-control", id = "days" })
            </div>
        </div>

        <div class="form-group">
            <label for="crs" class="control-label col-md-4 caption">Counter Reading Start:</label>
            <div class="col-md-2">
                @Html.TextBox("CounterReadingStart", null, htmlAttributes: new { @class = "form-control", id = "crs" })
            </div>
            <label for="cre" class="control-label col-md-125 caption">Current Meter Reading:</label>
            <div class="col-md-125">
                @Html.TextBox("CounterReadingEnd", null, htmlAttributes: new { @class = "form-control", id = "cre" })
            </div>
            <label for="thcf" class="control-label col-md-2 caption">Total HCF:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalHCF", null, htmlAttributes: new { @class = "form-control", id = "thcf" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-2">&nbsp;</div>
            <label class="control-label col-md-125">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="gallons" class="control-label col-md-2 caption">Total Gallons:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalGallons", null, htmlAttributes: new { @class = "form-control", id = "gallons" })
            </div>
        </div>

        <div class="form-group">
            <label for="f15HCF" class="control-label col-md-4 caption">1st 15 HCF at $3.6121:</label>
            <div class="col-md-2">
                @Html.TextBox("First15HCF", null,
                              htmlAttributes: new { @class = "form-control", id = "f15HCF" })
            </div>
            <label for="next10HCF" class="control-label col-md-125 caption">Next 10 HCF at $3.9180:</label>
            <div class="col-md-125">
                @Html.TextBox("Next10HCF", null,
                              htmlAttributes: new { @class = "form-control", id = "next10HCF" })
            </div>
            <label for="remHCF" class="control-label col-md-2 caption">Remaining HCF at $4.2763:</label>
            <div class="col-md-1">
                @Html.TextBox("RemainingHCF", null, htmlAttributes: new { @class = "form-control", id = "remHCF" })
            </div>
        </div>
        <div class="form-group">
            <label for="sewerCharges" class="control-label col-md-4 caption">Sewer Charges:</label>
            <div class="col-md-2">
                @Html.TextBox("SewerCharges", null,
                              htmlAttributes: new { @class = "form-control", id = "sewerCharges" })
            </div>
            <label for="stormCharges" class="control-label col-md-125 caption">Storm Charges:</label>
            <div class="col-md-125">
                @Html.TextBox("StormCharges", null,
                              htmlAttributes: new { @class = "form-control", id = "stormCharges" })
            </div>
            <label for="wuc" class="control-label col-md-2 caption">Water Usage Charges:</label>
            <div class="col-md-1">
                @Html.TextBox("WaterUsageCharges", null, htmlAttributes: new { @class = "form-control", id = "wuc" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-2">&nbsp;</div>
            <label class="control-label col-md-125">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="totalCharges" class="control-label col-md-2 caption">Total Charges:</label>
            <div class="col-md-1">
                @Html.TextBox("TotalCharges", null, htmlAttributes: new { @class = "form-control", id = "totalCharges" })
            </div>
        </div>
        <hr />
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="localTaxes" class="control-label col-md-125 caption">Local Taxes:</label>
            <div class="col-md-125">
                @Html.TextBox("LocalTaxes", null,
                              htmlAttributes: new { @class = "form-control", id = "localTaxes" })
            </div>
            <label for="stateTaxes" class="control-label col-md-125 caption">State Taxes:</label>
            <div class="col-md-125">
                @Html.TextBox("StateTaxes", null, htmlAttributes: new { @class = "form-control", id = "stateTaxes" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="pdd" class="control-label col-md-125 caption">Payment Due Date:</label>
            <div class="col-md-125">
                @Html.TextBox("PaymentDueDate", null,
                              htmlAttributes: new { @class = "form-control", type = "date", id = "pdd" })
            </div>
            <label for="amtDue" class="control-label col-md-125 caption">Amount Due:</label>
            <div class="col-md-125">
                @Html.TextBox("AmountDue", null,
                              htmlAttributes: new { @class = "form-control", id = "amtDue" })
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-md-4 caption">&nbsp;</label>
            <div class="col-md-125">&nbsp;</div>
            <label for="lpdd" class="control-label col-md-125 caption">Late Payment Due Date:</label>
            <div class="col-md-125">
                @Html.TextBox("LatePaymentDueDate", null,
                              htmlAttributes: new { @class = "form-control", id = "lpdd" })
            </div>
            <label for="lateAmtDue" class="control-label col-md-125 caption">Late Amount Due:</label>
            <div class="col-md-125">
                @Html.TextBox("LateAmountDue", null, htmlAttributes: new { @class = "form-control", id = "lateAmtDue" })
            </div>
        </div>

        <div class="form-group text-center">
            <label class="control-label col-md-5">
                @Html.ActionLink("Water Bills", "Index", null, htmlAttributes: new { @class = "water-nav" })
            </label>
            <div class="col-md-7">
                <input type="submit" value="Update Water Bill" class="btn btn-primary" />
            </div>
        </div>
    </div>
}

Click the WaterBillsController.cs tab
In the document, right-click one of the Delete() methods and click Add View...
In the Add View dialog box, make sure the View Name text box is displayinig Delete. Click Add

Create the webpage as follows:

@{
    ViewBag.Title = "Delete Water Bill";
}

<div class="push-down">
    <h2>Cancel Water Bill</h2>
</div>

<hr />

<div class="containment">
    <dl class="dl-horizontal common-font caption">
        <dt class="fw-bold">Water Bill ID:</dt>
        <dd>@ViewData["WaterBillID"]</dd>
        <dt class="fw-bold">Invoice #:</dt>
        <dd>@ViewData["InvoiceNumber"]</dd>
        <dt class="fw-bold">Account #:</dt>
        <dd>@ViewData["AccountNumber"]</dd>
        <dt class="fw-bold">Meter Reading Start Date:</dt>
        <dd>@ViewData["MeterReadingStartDate"]</dd>
        <dt class="fw-bold">Meter Reading End Date:</dt>
        <dd>@ViewData["MeterReadingEndDate"]</dd>
        <dt class="fw-bold">Billing Days:</dt>
        <dd>@ViewData["BillingDays"]</dd>
        <dt class="fw-bold">Counter Reading Start:</dt>
        <dd>@ViewData["CounterReadingStart"]</dd>
        <dt class="fw-bold">Counter Reading End:</dt>
        <dd>@ViewData["CounterReadingEnd"]</dd>
        <dt class="fw-bold">Total HCF:</dt>
        <dd>@ViewData["TotalHCF"]</dd>
        <dt class="fw-bold">Total Gallons:</dt>
        <dd>@ViewData["TotalGallons"]</dd>
        <dt class="fw-bold">First 15 HCF:</dt>
        <dd>@ViewData["First15HCF"]</dd>
        <dt class="fw-bold">Next 10 HCF:</dt>
        <dd>@ViewData["Next10HCF"]</dd>
        <dt class="fw-bold">Remaining HCF:</dt>
        <dd>@ViewData["RemainingHCF"]</dd>
        <dt class="fw-bold">Sewer Charges:</dt>
        <dd>@ViewData["SewerCharges"]</dd>
        <dt class="fw-bold">Storm Charges:</dt>
        <dd>@ViewData["StormCharges"]</dd>
        <dt class="fw-bold">Water Usage Charges:</dt>
        <dd>@ViewData["WaterUsageCharges"]</dd>
        <dt class="fw-bold">Total Charges:</dt>
        <dd>@ViewData["TotalCharges"]</dd>
        <dt class="fw-bold">Local Taxes:</dt>
        <dd>@ViewData["LocalTaxes"]</dd>
        <dt class="fw-bold">State Taxes:</dt>
        <dd>@ViewData["StateTaxes"]</dd>
        <dt class="fw-bold">Payment Due Date:</dt>
        <dd>@ViewData["PaymentDueDate"]</dd>
        <dt class="fw-bold">Amount Due:</dt>
        <dd>@ViewData["AmountDue"]</dd>
        <dt class="fw-bold">Late Payment Due Date:</dt>
        <dd>@ViewData["LatePaymentDueDate"]</dd>
        <dt class="fw-bold">Late Amount Due:</dt>
        <dd>@ViewData["LateAmountDue"]</dd>
    </dl>

    <h3 class="common-font caption">Are you sure you want to cancel this water bill (if you do, the bill will disappear from the system)?</h3>

    @using (Html.BeginForm())
    {
        <div class="form-actions no-color">
            <input type="submit" value="Cancel this Water Bill" class="btn btn-primary" /> |
            @Html.ActionLink("Customers Water Bills", "Index", null, new { @class = "water-nav" })
        </div>
    }
</div>

Payments

Bills payments are the means by which a company make smoney. Now, we will create the webpages necessary to create and manage payments.

Practical Learning: Making Payments

In the Solution Explorer, right-click Controllers -> Add -> New Scaffolded Item...
In the middle frame of the Add Scaffold dialog box, make sure MVC 5 Controller With Read/Write Actions is selected.
Click Add
Type Payments to get PaymentsControllers
Press Enter

Change the class as follows:


using System.Xml;
u
using System.Web.Mvc;

namespace StellarWaterPoint1.Controllers
{
    public class PaymentsController : Controller
    {
        // GET: Payments
        public ActionResult Index()
        {
            XmlDocument xdPayments = new XmlDocument();
            string strFilePayments = Server.MapPath("/AppData/Payments.xml");

            if (System.IO.File.Exists(strFilePayments))
            {
                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdPayments.Load(fsPayments);
                }

                if (xdPayments.DocumentElement.ChildNodes.Count > 0)
                {
                     ViewData["Payments"] = xdPayments.DocumentElement.ChildNodes;
                }
                else
                {
                     ViewData["Payments"] = null;
                }
            }

            return View();
        }

        // GET: Payments/Details/5
        public ActionResult Details(int id)
        {
            XmlDocument xdPayments = new XmlDocument();
            string strFilePayments = Server.MapPath("/AppData/Payments.xml");

            if (System.IO.File.Exists(strFilePayments))
            {
                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdPayments.Load(fsPayments);

                    XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                    foreach (XmlNode xnPayment in xnlPayments)
                    {
                        if (xnPayment.InnerText == id.ToString())
                        {
                             ViewData["PaymentID"]     = xnPayment.InnerText;
                             ViewData["ReceiptNumber"] = xnPayment.NextSibling.InnerText;
                             ViewData["WaterBillID"]   = xnPayment.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDate"]   = xnPayment.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentAmount"] = xnPayment.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // GET: Payments/Create
        public ActionResult Create()
        {
            int payment_id = 0;
            XmlDocument xdPayments = new XmlDocument();
            string strFilePayments = Server.MapPath("/AppData/Payments.xml");

            if (System.IO.File.Exists(strFilePayments))
            {
                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdPayments.Load(fsPayments);

                    XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                    foreach (XmlNode xnPayment in xnlPayments)
                    {
                        payment_id = int.Parse(xnPayment.FirstChild.InnerText);
                    }
                }
            }

            ViewData["PaymentID"] = (payment_id + 1);

            Random rndNumber = new Random();
            ViewData["ReceiptNumber"] = rndNumber.Next(100001, 999999).ToString();

            return View();
        }

        // POST: Payments/Create
        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here
                // int pmtId = 0;
                XmlDocument xdPayments = new XmlDocument();
                string strFilePayments = Server.MapPath("/AppData/Payments.xml");

                if (System.IO.File.Exists(strFilePayments))
                {
                    using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        xdPayments.Load(fsPayments);

                        /* XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                        foreach (XmlNode xnPayment in xnlPayments)
                        {
                            pmtId = int.Parse(xnPayment.InnerText);
                        } */
                    }
                }
                else
                {
                    xdPayments.LoadXml("<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
                                       "<payments></payments>");
                    // pmtId = 0;
                }

                // pmtId++;

                XmlElement xePayment = xdPayments.CreateElement("payment");

                xePayment.InnerXml = "<payment-id>"     + collection["PaymentID"]     + "</payment-id>"     +
                                     "<receipt-number>" + collection["ReceiptNumber"] + "</receipt-number>" +
                                     "<water-bill-id>"  + collection["WaterBillID"]   + "</water-bill-id>"  +
                                     "<payment-date>"   + collection["PaymentDate"]   + "</payment-date>"   +
                                     "<payment-amount>" + collection["PaymentAmount"] + "</payment-amount>";

                xdPayments.DocumentElement.AppendChild(xePayment);

                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))
                {
                    xdPayments.Save(fsPayments);
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: Payments/Edit/5
        public ActionResult Edit(int id)
        {
            XmlDocument xdPayments = new XmlDocument();
            string strFilePayments = Server.MapPath("/AppData/Payments.xml");

            if (System.IO.File.Exists(strFilePayments))
            {
                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdPayments.Load(fsPayments);

                    XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                    foreach (XmlNode xnPayment in xnlPayments)
                    {
                        if (xnPayment.InnerText == id.ToString())
                        {
                             ViewData["PaymentID"]     = xnPayment.InnerText;
                             ViewData["ReceiptNumber"] = xnPayment.NextSibling.InnerText;
                             ViewData["WaterBillID"]   = xnPayment.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDate"]   = xnPayment.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentAmount"] = xnPayment.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: Payments/Edit/5
        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
                XmlDocument xdPayments = new XmlDocument();
                string strFilePayments = Server.MapPath("/AppData/Payments.xml");

                if (System.IO.File.Exists(strFilePayments))
                {
                    using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        xdPayments.Load(fsPayments);
                    }

                    XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                    using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Truncate, FileAccess.ReadWrite, FileShare.ReadWrite))
                    {
                        foreach (XmlNode xnPayment in xnlPayments)
                        {
                            if (xnPayment.InnerText == id.ToString())
                            {
                                xnPayment.ParentNode.InnerXml = "<payment-id>"     + id                          + "</payment-id>"     +
                                                                "<receipt-number>" + collection["ReceiptNumber"] + "</receipt-number>" +
                                                                "<water-bill-id>"  + collection["WaterBillID"]   + "</water-bill-id>"  +
                                                                "<payment-date>"   + collection["PaymentDate"]   + "</payment-date>"   +
                                                                "<payment-amount>" + collection["PaymentAmount"] + "</payment-amount>";
                                xdPayments.Save(fsPayments);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        // GET: Payments/Delete/5
        public ActionResult Delete(int id)
        {
            XmlDocument xdPayments = new XmlDocument();
            string strFilePayments = Server.MapPath("/AppData/Payments.xml");

            if (System.IO.File.Exists(strFilePayments))
            {
                using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                {
                    xdPayments.Load(fsPayments);

                    XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment-id");

                    foreach (XmlNode xnPayment in xnlPayments)
                    {
                        if (xnPayment.InnerText == id.ToString())
                        {
                             ViewData["PaymentID"]     = xnPayment.InnerText;
                             ViewData["ReceiptNumber"] = xnPayment.NextSibling.InnerText;
                             ViewData["WaterBillID"]   = xnPayment.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentDate"]   = xnPayment.NextSibling.NextSibling.NextSibling.InnerText;
                             ViewData["PaymentAmount"] = xnPayment.NextSibling.NextSibling.NextSibling.NextSibling.InnerText;
                        }
                    }
                }
            }

            return View();
        }

        // POST: Payments/Delete/5
        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here
                XmlDocument xdPayments = new XmlDocument();
                string strFilePayments = Server.MapPath("/AppData/Payments.xml");

                if (System.IO.File.Exists(strFilePayments))
                {
                    using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Open, FileAccess.Read, FileShare.Read))
                    {
                        xdPayments.Load(fsPayments);
                    }

                    using (FileStream fsPayments = new FileStream(strFilePayments, FileMode.Truncate, FileAccess.Write, FileShare.Write))
                    {
                        XmlNodeList xnlPayments = xdPayments.GetElementsByTagName("payment");

                        foreach (XmlNode xnPayment in xnlPayments)
                        {

                            if (xnPayment.FirstChild.InnerText == id.ToString())
                            {
                                xnPayment.ParentNode.RemoveChild(xnPayment);
                                xdPayments.Save(fsPayments);
                                break;
                            }
                        }
                    }
                }

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

In the class, right-click Index() and click Add View...
Make sure the View Name text box is displaying Index. Click Add

Change document as follows:

@{
    ViewBag.Title = "Water Bills Payments";
}

<div class="push-down">
    <h2 class="common-font bold text-center">Water Bills Payments</h2>
</div>

<hr />

<table class="table table-striped common-font">
    <tr>
        <th class="fw-bold">Payment ID</th>
        <th class="fw-bold">Receipt #</th>
        <th class="fw-bold">Water Bill ID</th>
        <th class="fw-bold">Payment Date</th>
        <th class="fw-bold">Payment Amount</th>
        <th>@Html.ActionLink("New Bill Payment", "Create", null, htmlAttributes: new { @class = "water-nav" })</th>
    </tr>

    @if (ViewData["Payments"] != null)
    {
        foreach (System.Xml.XmlNode pmt in ViewData["Payments"] as System.Xml.XmlNodeList)
        {
            <tr>
                <td class="text-center">@pmt.FirstChild.InnerText</td>
                <td>@pmt.FirstChild.NextSibling.InnerText</td>
                <td>@pmt.FirstChild.NextSibling.NextSibling.InnerText</td>
                <td>@pmt.FirstChild.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>@pmt.FirstChild.NextSibling.NextSibling.NextSibling.NextSibling.InnerText</td>
                <td>
                    @Html.ActionLink("Update", "Edit", new { id = pmt.FirstChild.InnerText }) <span style="color: aquamarine">::</span>
                    @Html.ActionLink("Review", "Details", new { id = pmt.FirstChild.InnerText }) <span style="color: aquamarine">::</span>
                    @Html.ActionLink("Remove", "Delete", new { id = pmt.FirstChild.InnerText })
                </td>
            </tr>
        }
    }
</table>

Click the PaymentsController.cs tab
In the class, right-click Details() and click Add View...
Make sure the View Name text box is displaying Details. Click Add

Chang the document as follows:

@{
    ViewBag.Title = "Water Bill Details";
}

<div class="push-down">
    <h2>Water Bill Details</h2>
</div>

<hr />

<div class="containment">
    <dl class="dl-horizontal common-font caption">
        <dt class="fw-bold">Payment ID:</dt>
        <dd>@ViewData["PaymentID"]</dd>
        <dt>Receipt #:</dt>
        <dd>@ViewData["ReceiptNumber"]</dd>
        <dt>Water Bill ID:</dt>
        <dd>@ViewData["WaterBillID"]</dd>
        <dt>Payment Date:</dt>
        <dd>@ViewData["PaymentDate"]</dd>
        <dt>Payment Amount:</dt>
        <dd>@ViewData["PaymentAmount"]</dd>
    </dl>
</div>

<p class="text-center">
    @Html.ActionLink("Edit/Update Bill Payment", "Edit",
                      new { id = ViewData["PaymentID"] }, htmlAttributes: new { @class = "water-nav" }) ::
    @Html.ActionLink("Water Bill Payments", "Index",
                     null, new { @class = "water-nav" })
</p>

Click the PaymentsController.cs tab
In the document, right-click Create() and click Add View...
In the Add View dialog box, make sure the View Name text box is displaying Create. Click Add

Change the document as follows:

@{
    ViewBag.Title = "Create Bill Payment";
}

<div class="push-down">
    <h2>Make Water Bill Payment</h2>
</div>

<hr />

@using (Html.BeginForm())
{
<div class="form-horizontal">
    <div class="form-group">
        <label for="pmtId" class="control-label col-md-4 caption">Payment ID:</label>
        <div class="col-md-8">
            @Html.TextBox("PaymentID", null, htmlAttributes: new { @class = "form-control", id = "pmtId" })
        </div>
    </div>

    <div class="form-group">
        <label for="mtrNbr" class="control-label col-md-4 caption">Receipt #:</label>
        <div class="col-md-8">
            @Html.TextBox("ReceiptNumber", null, htmlAttributes: new { @class = "form-control", id = "mtrNbr" })
        </div>
    </div>

    <div class="form-group">
        <label for="billId" class="control-label col-md-4 caption">Water Bill ID:</label>
        <div class="col-md-8">
            @Html.TextBox("WaterBillID", null, htmlAttributes: new { @class = "form-control", id = "billId" })
        </div>
    </div>

    <div class="form-group">
        <label for="pmtDate" class="control-label col-md-4 caption">Payment Date:</label>
        <div class="col-md-8">
            @Html.TextBox("PaymentDate", null, htmlAttributes: new { @class = "form-control", id = "pmtDate" })
        </div>
    </div>

    <div class="form-group">
        <label for="pmtAmt" class="control-label col-md-4 caption">Payment Amount:</label>
        <div class="col-md-8">
            @Html.TextBox("PaymentAmount", null, htmlAttributes: new { @class = "form-control", id = "pmtAmt" })
        </div>
    </div>

    <div class="form-group">
        <label class="control-label col-md-5">
            @Html.ActionLink("Bills Payments", "Index", null, htmlAttributes: new { @class = "water-nav" })
        </label>
        <div class="col-md-7">
            <input type="submit" value="Create Bill Payment" class="btn btn-primary" />
        </div>
    </div>
</div>
}

Click the PaymntsControllers.cs tab
In the PaymentsController class, right-click one of the Edit() methods and click Add View...
Make sure the View Name text box is displaying Edit. Click Add

Change the webpage as follows:

@{
    ViewBag.Title = "Edit/Update Bill Payment";
}

<div class="push-down">
    <h2>Edit/Update Bill Payment</h2>
</div>

<hr />

@using (Html.BeginForm())
{
    <div class="form-horizontal">
        <div class="form-group">
            <label class="control-label col-md-4 caption">Payment ID:</label>
            <div class="col-md-8">
                @Html.TextBox("PaymentID", null,
                              htmlAttributes: new { @class = "form-control", disabled = "disabled" })
            </div>
        </div>

        <div class="form-group">
            <label for="recNbr" class="control-label col-md-4 caption">Receipt #:</label>
            <div class="col-md-8">
                @Html.TextBox("ReceiptNumber", null, htmlAttributes: new { @class = "form-control", id = "recNbr" })
            </div>
        </div>

        <div class="form-group">
            <label for="billNbr" class="control-label col-md-4 caption">Account #:</label>
            <div class="col-md-8">
                @Html.TextBox("WaterBillID", null, htmlAttributes: new { @class = "form-control", id = "billNbr" })
            </div>
        </div>

        <div class="form-group">
            <label for="pmtDate" class="control-label col-md-4 caption">Payment Date:</label>
            <div class="col-md-8">
                @Html.TextBox("PaymentDate", null,
                              htmlAttributes: new { @class = "form-control", type = "date", id = "pmtDate" })
            </div>
        </div>

        <div class="form-group">
            <label for="pmtAmt" class="control-label col-md-4 caption">Payment Amount:</label>
            <div class="col-md-8">
                @Html.TextBox("PaymentAmount", null, htmlAttributes: new { @class = "form-control", id = "pmtAmt" })
            </div>
        </div>

        <div class="form-group">
            <label class="control-label col-md-5">
                @Html.ActionLink("Bills Payments", "Index", null, htmlAttributes: new { @class = "water-nav" })
            </label>
            <div class="col-md-7">
                <input type="submit" value="Update this Payment" class="btn btn-primary" />
            </div>
        </div>
    </div>
}

Click the PaymentsController.cs tab
In the document, right-click one of the Delete() methods and click Add View...
Make sure the View Name text box is displaying Delete. Click Add

Create the wepbpage as follows:

@{
    ViewBag.Title = "Delete Bill Payment";
}

<div class="push-down">
    <h2>Delete Bill Payment</h2>
</div>

<hr />

<div class="containment">
    <dl class="dl-horizontal common-font caption">
        <dt>Payment ID:</dt>
        <dd>@ViewData["PaymentID"]</dd>
        <dt>Receipt #:</dt>
        <dd>@ViewData["ReceiptNumber"]</dd>
        <dt>Water Bill ID:</dt>
        <dd>@ViewData["WaterBillID"]</dd>
        <dt>Payment Date:</dt>
        <dd>@ViewData["PaymentDate"]</dd>
        <dt>Payment Amount:</dt>
        <dd>@ViewData["PaymentAmount"]</dd>
    </dl>

    <h3 class="common-font caption">Are you sure you want to cancel this payment?</h3>

    @using (Html.BeginForm())
    {
        <div class="form-actions no-color">
            <input type="submit" value="Cancel this bill payment" class="btn btn-primary" /> |
            @Html.ActionLink("Water Bills Payments", "Index", null, new { @class = "water-nav" })
        </div>
    }
</div>

Finalizing the Application

Most of the time, it is a good idea to apply a common design to most webpages of a website. In ASP.NET, such a design is created as a layout view.

Practical Learning: Finalizing the Application

In the Solution Explorer, under Views, expand Shared

Click _Layout.cshtml and change the document as follows:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>@ViewBag.Title - Water for a Shining Life</title>
    @Styles.Render("~/Content/css")
    @Scripts.Render("~/bundles/modernizr")
</head>
<body>
    <div class="top-bar">
        <div class="containment"><img src="~/Images/wsl1.png" alt="Water for a Shining Life" width="490" height="92" /></div>
    </div>

    <div class="navbar navbar-inverse navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                @Html.ActionLink("Home", "Index", "Home", new { area = "" }, new { @class = "navbar-brand" })
            </div>
            <div class="navbar-collapse collapse">
                <ul class="nav navbar-nav">
                    <li>@Html.ActionLink("Emergency Services", "Index", "Home")</li>
                    <li>@Html.ActionLink("Cummunity", "Index", "Home")</li>
                    <li>@Html.ActionLink("Environment", "Index", "Home")</li>
                    <li>@Html.ActionLink("Resources", "Index", "Home")</li>
                    <li>@Html.ActionLink("Projects", "Index", "Home")</li>
                    <li>@Html.ActionLink("Customer Service", "Index", "Home")</li>
                    <li>@Html.ActionLink("Employment", "Index", "Home")</li>
                    <li>@Html.ActionLink("Questions?", "Index", "Home")</li>
                    <li>@Html.ActionLink("About", "About", "Home")</li>
                    <li>@Html.ActionLink("Contact", "Contact", "Home")</li>
                </ul>
            </div>
        </div>
    </div>
    <div class="container body-content">
        @RenderBody()
        <hr />
        <footer>
            <p class="copyright text-center common-font">&copy; @DateTime.Now.Year - Water for a Shining Life</p>
        </footer>
    </div>

    @Scripts.Render("~/bundles/jquery")
    @Scripts.Render("~/bundles/bootstrap")
    @RenderSection("scripts", required: false)
</body>
</html>

In the Solution Explorer, under Views, expand Home, and click Index.cshtml

Change the document as follows:

<div class="jumbotron">
    <h2>.</h2>
    <p class="lead">
        Our water utility company provides energy, greatness, and warmth
        for a everyday life, a shining life. We provide solutions to families, businesses,
        and the community.
    </p>

    <p class="lead">
        This is the employees portal section of the company. From here,
        employees can register a new water meter, manage a customer account, or
        create a water bill.
    </p>
</div>

<div class="row">
    <div class="col-md-3">
        <h2>Water Meters</h2>
        <p>
            Our company uses the most accurate, sophisticated, and environment-friendly
            water meters on the market.
        </p>
        <p>@Html.ActionLink("Water Meters", "Index", "WaterMeters", null, new { @class = "btn btn-primary" })</p>
    </div>
    <div class="col-md-3">
        <h2>Customers</h2>
        <p>
            We supply water to individuals, families, small
            businesses, as well as enterprises or government agencies.
        </p>
        <p>@Html.ActionLink("Customers", "Index", "Customers", null, new { @class = "btn btn-primary" })</p>
    </div>
    <div class="col-md-3">
        <h2>Water Bills</h2>
        <p>
            Our water rates are very competitive nationwide. We use precise,
            effective, and strict algorithms when calculating our bills.
        </p>
        <p>@Html.ActionLink("Bills/Invoices", "Index", "WaterBills", null, new { @class = "btn btn-primary" })</p>
    </div>
    <div class="col-md-3">
        <h2>Payments</h2>
        <p>
            Our payment system is the simplest, the fairest, and the fastest. Our custiomer's service
            is highly rated.
        </p>
        <p>@Html.ActionLink("Bills Payments", "Index", "Payments", null, new { @class = "btn btn-primary" })</p>
    </div>
</div>

To execute the application, on the main menu, click Debug -> Start Without Debugging
Click the Water Meters button
Click the New Water Meter link
Click the Review link that corresponds to the fourth record
Click the Water Meters link
Click the Review link of the last record
Click the Edit/Update Water Meter Information link

Change the following values:

Meter #:         283-58-958
Make:            Constance Technologies
Model:           TR-6224
Date Last Udate: 04/22/2022

Click Update Water Meter Details
Click the Home link
Click the Home link
Click the Bills/Invoices button
Click the New Water Bill link
To start a record, in the Customer Account # text box, type 7518-302-6895 and press Tab
In the Meter Reading End Date text box, type 7/30/2022 and press Tab
In the Current Meter Reading text box, type 114 and press Tab

Enter the following two values:

Payment Due Date:      08/27/2022
Late Payment Due Date: 09/13/2022

Click the Save Water Bill button
Click the New Water Bill link

Create a few records with the following values:

Account #	Meter Reading End Date	Current Meter Reading	Payment Due Date	Late Payment Due Date
4820-375-2842	07/31/2022	109998	08/28/2022	09/14/2022
2038-413-9680	7/30/2022	137975	8/27/2022	9/13/2022
9279-570-8394	08/07/2022	6275	08/04/2022	08/20/2022
7518-302-6895	11/07/2022	118	12/01/2022	12/15/2022
2038-413-9680	10/27/2022	138012	11/24/2022	12/10/2022

Click the Home link
click the Bills Payments button
Click the New Bill Payment link

Create a few records with the following values:

Receipt #	Bill ID	Payment Date	Payment Amount
625288	2	08/24/2022	145.75
836168	3	09/12/2022	198.36
886415	1	08/27/2022	93.34
724705	4	09/01/2022	41.31
141806	6	12/05/2022	163.40
706953	5	12/10/2022	27.44

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