Handle CheckBox Unchecked events : CheckBox « Windows Presentation Foundation « C# / C Sharp

Handle CheckBox Unchecked events

Handle CheckBox Unchecked events
<Window x:Class="WpfApplication1.Window1"
    Title="WPF" Height="250" Width="300">
    <StackPanel Name="panel">
        <CheckBox Content="First CheckBox" 
                  IsChecked="True" Margin="2" Name="checkbox1" 
        <CheckBox Content="Second CheckBox" 
                  IsChecked="False" Margin="2" Name="checkbox2" 
        <Button Content="Get Selected" Margin="5" MaxWidth="100" 
                Click="Button_Click" />
        <TextBlock FontWeight="Bold" Text="Selected CheckBoxes:" />
        <ListBox Margin="5" MinHeight="2cm" Name="listbox" />
using System.Linq;
using System.Windows;
using System.Windows.Controls;

namespace WpfApplication1
    public partial class Window1 : Window
        public Window1()
        private void Button_Click(object sender, RoutedEventArgs e)
            foreach (CheckBox checkbox in panel.Children.OfType<CheckBox>().Where( cb => cb.IsChecked == true))

        private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
            if (!IsInitialized) return;

            CheckBox checkbox = e.OriginalSource as CheckBox;

            if (checkbox != null)
                MessageBox.Show(checkbox.Name + " is unchecked.", Title);


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