WPF學習日誌 ~ RadioButton ~

RadioButton與之前在Windows Form的時候使用上沒有太大的差異，下面這邊我們特別說明一個GroupName這個屬性；在以往，同一個群組的項目我們會把它放到容器中，用容器來作分割；而在WPF裡面則是用GroupName來作分割，下面我們來看看測試的程式碼

Imports System.Windows
Imports System.IO
Imports System.Reflection

Class Window1
    Dim spMain As StackPanel
    Dim wpChild_1 As WrapPanel
    Dim wpChild_2 As WrapPanel
    Dim rdoA(2) As RadioButton
    Dim rdoB(2) As RadioButton
    Dim tbMsg As TextBlock

    Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded
        spMain = New StackPanel
        Me.Content = spMain
        For z As Integer = 0 To 2
            rdoA(z) = New RadioButton
            rdoA(z).Content = "RadioButton-A-" & z
            ''不指定GroupName的話預設是""
            'rdoA(z).GroupName = "A"
            rdoA(z).Margin = New Thickness(3)
            AddHandler rdoA(z).Checked, AddressOf RadioButton_Checked
            rdoB(z) = New RadioButton
            rdoB(z).Content = "RadioButton-B-" & z
            rdoB(z).GroupName = "B"
            rdoB(z).Margin = New Thickness(3)
            AddHandler rdoB(z).Checked, AddressOf RadioButton_Checked
        Next
        wpChild_1 = New WrapPanel
        wpChild_1.Background = Brushes.LightGreen
        wpChild_1.Children.Add(rdoA(0))
        wpChild_1.Children.Add(rdoA(1))
        wpChild_1.Children.Add(rdoA(2))
        wpChild_1.Children.Add(rdoB(0))

        wpChild_2 = New WrapPanel
        wpChild_2.Background = Brushes.LightPink
        wpChild_2.Children.Add(rdoB(1))
        wpChild_2.Children.Add(rdoB(2))

        spMain.Children.Add(wpChild_1)
        spMain.Children.Add(wpChild_2)

        tbMsg = New TextBlock
        spMain.Children.Add(tbMsg)
    End Sub

    Protected Sub RadioButton_Checked(ByVal sender As Object, ByVal e As RoutedEventArgs)
        If e.OriginalSource.GetType.Equals(GetType(RadioButton)) Then
            tbMsg.Text = CType(e.OriginalSource, RadioButton).Content & "-->Checked"
        End If
    End Sub
End Class

如果不設定GruopName的時候行為就跟以往在Windows Form的時候是一樣的