Check if a CheckBox is checked

    

<UserControl x:Class='SilverlightApplication3.MainPage'
    xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' 
    xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
    xmlns:d='http://schemas.microsoft.com/expression/blend/2008' 
    xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' 
    mc:Ignorable='d' 
    d:DesignWidth='640' 
    d:DesignHeight='480'>
    <Grid x:Name="LayoutRoot" Background="White">
        <StackPanel>
            <CheckBox Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked" IsThreeState="True" Content="Test1">
            </CheckBox>
            <CheckBox Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked" IsThreeState="True">
                <CheckBox.Content>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="The Caption"></TextBlock>
                     </StackPanel>
                </CheckBox.Content>
            </CheckBox>
        </StackPanel>

    </Grid>
</UserControl>


//File: Page.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApplication3
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }
        private void CheckBox_Checked(object sender, RoutedEventArgs e)
        {
            CheckBox c = (CheckBox)sender;
            bool b = (bool)c.IsChecked;
        }

        private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
        {
            CheckBox c = (CheckBox)sender;
            bool b = (bool)c.IsChecked;
        }

    }
}

Related examples in the same category

1.	Creating a CheckBox
2.	CheckBox controls can be declared in XAML with several different properties that enhance their look and feel
3.	A CheckBox with a skew transformation
4.	Add CheckBox to StackPanel
5.	A basic CheckBox setup
6.	Using three-state mode check boxes

Check if a CheckBox is checked : CheckBox « UI Controls « Silverlight

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