Handle CheckBox checked events : CheckBox « Windows Presentation Foundation « VB.Net






Handle CheckBox checked events

Handle CheckBox checked events
   
<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" Height="250" Width="300">
    <StackPanel Name="panel">
        <CheckBox Checked="CheckBox_Checked" Content="First CheckBox" 
                  IsChecked="True" Margin="2" Name="checkbox1"/>
        <Button Content="Get Selected" Margin="5" MaxWidth="100" 
                Click="Button_Click" />
        <TextBlock FontWeight="Bold" Text="Selected CheckBoxes:" />
        <ListBox Margin="5" MinHeight="2cm" Name="listbox" />
    </StackPanel>
</Window>
//File:Window.xaml.vb
Imports System.Linq
Imports System.Windows
Imports System.Windows.Controls

Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()
      InitializeComponent()
    End Sub
    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
      listbox.Items.Clear()
      For Each checkbox As CheckBox In panel.Children.OfType(Of CheckBox)().Where(Function(cb) cb.IsChecked = True)
        listbox.Items.Add(checkbox.Name)
      Next
    End Sub
    Private Sub CheckBox_Checked(sender As Object, e As RoutedEventArgs)
      If Not IsInitialized Then
        Return
      End If
      Dim checkbox As CheckBox = TryCast(e.OriginalSource, CheckBox)
      If checkbox IsNot Nothing Then
        MessageBox.Show(checkbox.Name & " is checked.", Title)
      End If
    End Sub

  End Class
End Namespace

   
    
    
  








Related examples in the same category

1.CheckBox checked event listenerCheckBox checked event listener
2.Handles CheckBox Indeterminate events when a CheckBox changes to a indeterminate state.Handles CheckBox Indeterminate events when a CheckBox changes to a indeterminate state.
3.Handle CheckBox Unchecked eventsHandle CheckBox Unchecked events
4.Use Linq to get checked CheckBoxUse Linq to get checked CheckBox
5.Check the CheckBox based on key pressed statesCheck the CheckBox based on key pressed states