VB.Net/GUI/Action Handler

Add and Remove Action Handler Dynamically

<source lang="vbnet"> Imports System Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Configuration Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Globalization Imports System.Text Imports System.Collections Public Class MainClass

   Shared Sub Main()
       Dim myform As Form = New Form1()
       Application.Run(myform)
   End Sub

End Class

Public Class Form1

   Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
       If RadioButton1.Checked Then
           AddHandler Button1.Click, AddressOf ButtonHandler1
       Else
           RemoveHandler Button1.Click, AddressOf ButtonHandler1
       End If
   End Sub
   Private Sub RadioButton2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged
       If RadioButton2.Checked Then
           AddHandler Button1.Click, AddressOf ButtonHandler2
       Else
           RemoveHandler Button1.Click, AddressOf ButtonHandler2
       End If
   End Sub
   Private Sub ButtonHandler1(ByVal sender As System.Object, ByVal e As System.EventArgs)
       MessageBox.Show("Button Handler1")
   End Sub
   Private Sub ButtonHandler2(ByVal sender As System.Object, ByVal e As System.EventArgs)
       MessageBox.Show("Button Handler2")
   End Sub
   Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       RadioButton1.Checked = True
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.RadioButton1 = New System.Windows.Forms.RadioButton
       Me.RadioButton2 = New System.Windows.Forms.RadioButton
       Me.Button1 = New System.Windows.Forms.Button
       Me.SuspendLayout()
       "
       "RadioButton1
       "
       Me.RadioButton1.AutoSize = True
       Me.RadioButton1.Location = New System.Drawing.Point(8, 8)
       Me.RadioButton1.Name = "RadioButton1"
       Me.RadioButton1.Size = New System.Drawing.Size(99, 17)
       Me.RadioButton1.TabIndex = 0
       Me.RadioButton1.Text = "ButtonHandler1"
       Me.RadioButton1.UseVisualStyleBackColor = True
       "
       "RadioButton2
       "
       Me.RadioButton2.AutoSize = True
       Me.RadioButton2.Location = New System.Drawing.Point(8, 40)
       Me.RadioButton2.Name = "RadioButton2"
       Me.RadioButton2.Size = New System.Drawing.Size(99, 17)
       Me.RadioButton2.TabIndex = 1
       Me.RadioButton2.Text = "ButtonHandler2"
       Me.RadioButton2.UseVisualStyleBackColor = True
       "
       "Button1
       "
       Me.Button1.Location = New System.Drawing.Point(152, 16)
       Me.Button1.Name = "Button1"
       Me.Button1.Size = New System.Drawing.Size(75, 23)
       Me.Button1.TabIndex = 2
       Me.Button1.Text = "Button1"
       Me.Button1.UseVisualStyleBackColor = True
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(292, 273)
       Me.Controls.Add(Me.Button1)
       Me.Controls.Add(Me.RadioButton2)
       Me.Controls.Add(Me.RadioButton1)
       Me.Name = "Form1"
       Me.Text = "AddRemoveHandler"
       Me.ResumeLayout(False)
       Me.PerformLayout()
   End Sub
   Friend WithEvents RadioButton1 As System.Windows.Forms.RadioButton
   Friend WithEvents RadioButton2 As System.Windows.Forms.RadioButton
   Friend WithEvents Button1 As System.Windows.Forms.Button

End Class

      </source>