VB.Net by API/System.Windows.Forms/RadioButton

RadioButton.CheckedChanged

<source lang="vbnet"> Option Strict On Imports System.Windows.Forms public class RadioButtonState

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

  Inherits System.Windows.Forms.Form

1. Region " Windows Form Designer generated code "

  Public Sub New()
     MyBase.New()
     "This call is required by the Windows Form Designer.
     InitializeComponent()
     "Add any initialization after the InitializeComponent() call
  End Sub
  "Form overrides dispose to clean up the component list.
  Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
     If disposing Then
        If Not (components Is Nothing) Then
           components.Dispose()
        End If
     End If
     MyBase.Dispose(disposing)
  End Sub
  Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
  Friend WithEvents RadioButton1 As System.Windows.Forms.RadioButton
  Friend WithEvents RadioButton2 As System.Windows.Forms.RadioButton
  Friend WithEvents RadioButton3 As System.Windows.Forms.RadioButton
  Friend WithEvents Button1 As System.Windows.Forms.Button
  "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.GroupBox1 = New System.Windows.Forms.GroupBox()
     Me.RadioButton3 = New System.Windows.Forms.RadioButton()
     Me.RadioButton2 = New System.Windows.Forms.RadioButton()
     Me.RadioButton1 = New System.Windows.Forms.RadioButton()
     Me.Button1 = New System.Windows.Forms.Button()
     Me.GroupBox1.SuspendLayout()
     Me.SuspendLayout()
     "
     "GroupBox1
     "
     Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.RadioButton3, Me.RadioButton2, Me.RadioButton1})
     Me.GroupBox1.Location = New System.Drawing.Point(40, 32)
     Me.GroupBox1.Name = "GroupBox1"
     Me.GroupBox1.Size = New System.Drawing.Size(240, 160)
     Me.GroupBox1.TabIndex = 0
     Me.GroupBox1.TabStop = False
     Me.GroupBox1.Text = "Choose a button:"
     "
     "RadioButton3
     "
     Me.RadioButton3.Location = New System.Drawing.Point(40, 104)
     Me.RadioButton3.Name = "RadioButton3"
     Me.RadioButton3.Size = New System.Drawing.Size(144, 24)
     Me.RadioButton3.TabIndex = 2
     Me.RadioButton3.Text = "RadioButton3"
     "
     "RadioButton2
     "
     Me.RadioButton2.Location = New System.Drawing.Point(40, 64)
     Me.RadioButton2.Name = "RadioButton2"
     Me.RadioButton2.Size = New System.Drawing.Size(144, 24)
     Me.RadioButton2.TabIndex = 1
     Me.RadioButton2.Text = "RadioButton2"
     "
     "RadioButton1
     "
     Me.RadioButton1.Checked = True
     Me.RadioButton1.Location = New System.Drawing.Point(40, 32)
     Me.RadioButton1.Name = "RadioButton1"
     Me.RadioButton1.Size = New System.Drawing.Size(144, 24)
     Me.RadioButton1.TabIndex = 0
     Me.RadioButton1.TabStop = True
     Me.RadioButton1.Text = "RadioButton1"
     "
     "Button1
     "
     Me.Button1.Location = New System.Drawing.Point(56, 216)
     Me.Button1.Name = "Button1"
     Me.Button1.Size = New System.Drawing.Size(168, 23)
     Me.Button1.TabIndex = 1
     Me.Button1.Text = "Which is Selected?"
     "
     "Form1
     "
     Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
     Me.ClientSize = New System.Drawing.Size(292, 266)
     Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.GroupBox1})
     Me.Name = "Form1"
     Me.Text = "Form1"
     Me.GroupBox1.ResumeLayout(False)
     Me.ResumeLayout(False)
  End Sub

1. End Region

  Private Sub RadioButton1_CheckedChanged(ByVal sender As Object, _
      ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged, _
      RadioButton2.CheckedChanged, RadioButton3.CheckedChanged
  End Sub
  Private Sub Button1_Click(ByVal sender As Object, _
      ByVal e As System.EventArgs) Handles Button1.Click
     Dim c As Object
     For Each c In Me.GroupBox1.Controls
        If TypeOf (c) Is RadioButton Then
           Dim rb As RadioButton = CType(c, RadioButton)
           If rb.Checked = True Then
              MsgBox(CStr(rb.Name) & " is selected")
              Exit For
           End If
        End If
     Next
  End Sub

End Class

 </source>

RadioButton.Text

<source lang="vbnet"> Imports System.Windows.Forms Module Module1

   Sub Main()
       Application.Run(New Form1)
   End Sub

End Module

Public Class Form1

   Inherits System.Windows.Forms.Form

1. Region " Windows Form Designer generated code "

   Public Sub New()
       MyBase.New()
       "This call is required by the Windows Form Designer.
       InitializeComponent()
       "Add any initialization after the InitializeComponent() call
   End Sub
   "Form overrides dispose to clean up the component list.
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing Then
           If Not (components Is Nothing) Then
               components.Dispose()
           End If
       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.
   Friend WithEvents Label1 As System.Windows.Forms.Label
   Friend WithEvents RadioButton1 As System.Windows.Forms.RadioButton
   Friend WithEvents RadioButton2 As System.Windows.Forms.RadioButton
   Friend WithEvents RadioButton3 As System.Windows.Forms.RadioButton
   <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
       Me.Label1 = New System.Windows.Forms.Label()
       Me.RadioButton1 = New System.Windows.Forms.RadioButton()
       Me.RadioButton2 = New System.Windows.Forms.RadioButton()
       Me.RadioButton3 = New System.Windows.Forms.RadioButton()
       Me.SuspendLayout()
       "
       "Label1
       "
       Me.Label1.Location = New System.Drawing.Point(32, 152)
       Me.Label1.Name = "Label1"
       Me.Label1.Size = New System.Drawing.Size(232, 23)
       Me.Label1.TabIndex = 0
       "
       "RadioButton1
       "
       Me.RadioButton1.Location = New System.Drawing.Point(32, 24)
       Me.RadioButton1.Name = "RadioButton1"
       Me.RadioButton1.TabIndex = 1
       Me.RadioButton1.Text = "Windows 2000"
       "
       "RadioButton2
       "
       Me.RadioButton2.Location = New System.Drawing.Point(32, 64)
       Me.RadioButton2.Name = "RadioButton2"
       Me.RadioButton2.TabIndex = 2
       Me.RadioButton2.Text = "Linux"
       "
       "RadioButton3
       "
       Me.RadioButton3.Location = New System.Drawing.Point(32, 104)
       Me.RadioButton3.Name = "RadioButton3"
       Me.RadioButton3.TabIndex = 3
       Me.RadioButton3.Text = "Mac OS"
       "
       "Form1
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(296, 213)
       Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.RadioButton3, Me.RadioButton2, Me.RadioButton1, Me.Label1})
       Me.Name = "Form1"
       Me.Text = "RadioButtonDemo"
       Me.ResumeLayout(False)
   End Sub

1. End Region

   Private Sub RadioButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton1.Click
       Label1.Text = "Current choice: " & RadioButton1.Text
       Label1.Refresh()
   End Sub
   Private Sub RadioButton2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton2.Click
       Label1.Text = "Current choice: " & RadioButton2.Text
       Label1.Refresh()
   End Sub
   Private Sub RadioButton3_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButton3.Click
       Label1.Text = "Current choice: " & RadioButton3.Text
       Label1.Refresh()
   End Sub

End Class

 </source>