Introduction

This property is managed through the DockStyle enumeration. To use this property, click the control and, in the Properties window, click the arrow of the Dock field. You can then select one of the following values:

Bottom: The control will be attached to the bottom border of its parent:

Fill: The control will use the whole client area of its parent.

Left: The control will be attached to the left border of its parent:

None: The control will be kept where it was positioned on the parent:

Right: The control will be attached to the right border of its parent:

Top: The control will be attached to the top border of its parent:

To programmatically specify the docking option of a control, access its Dock property and assign the desired member of the DockStyle enumeration. Here is an example:

Imports System
Imports System.Drawing
Imports System.Windows.Forms

Module Exercise

    Public Class WinControls
        Inherits Form

        Private btnSubmit As Button

        Dim components As System.ComponentModel.Container

        Public Sub New()
            InitializeComponent()
        End Sub

        Public Sub InitializeComponent()
            btnSubmit = New Button()
            btnSubmit.Text = "Submit"
            btnSubmit.Location = New Point(20, 20)
            btnSubmit.Size = New Size(100, 60)

            btnSubmit.Dock = DockStyle.Right

            Controls.Add(btnSubmit)
        End Sub

        Public Shared Function Main() As Integer

            Application.Run(New WinControls())
            Return 0

        End Function

    End Class

End Module

This would produce: