CheckBox List : CheckBox « Windows Presentation Foundation « C# / CSharp Tutorial





<Window x:Class="ClassicControls.CheckBoxList"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="CheckBoxList" Height="300" Width="300">
  <Grid Margin="10">
    <Grid.RowDefinitions>
      <RowDefinition Height="*"></RowDefinition>
      <RowDefinition Height="Auto"></RowDefinition>
    </Grid.RowDefinitions>
    
    <ListBox Name="lst" SelectionChanged="lst_SelectionChanged" CheckBox.Click="lst_SelectionChanged" >
      <CheckBox Margin="3">Option 1</CheckBox>
      <CheckBox Margin="3">Option 2</CheckBox>
      <CheckBox Margin="3">Option 3</CheckBox>
    </ListBox>
    <StackPanel Grid.Row="1" Margin="0,10,0,0">
      <Button Margin="0,10,0,0" Click="cmd_CheckAllItems">Examine All Items</Button>
    </StackPanel>
  </Grid>
</Window>
//File:Window.xaml.cs


using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace ClassicControls
{
    public partial class CheckBoxList : System.Windows.Window
    {
        public CheckBoxList()
        {
            InitializeComponent();
        }
        private void lst_SelectionChanged(object sender, RoutedEventArgs e)
        {
            if (e.OriginalSource is CheckBox)
            {
                lst.SelectedItem = e.OriginalSource;
            }
            
            if (lst.SelectedItem == null) return;
            Console.WriteLine(lst.SelectedIndex);
            Console.WriteLine(((CheckBox)lst.SelectedItem).IsChecked);
        }

        private void cmd_CheckAllItems(object sender, RoutedEventArgs e)
        {
            foreach (CheckBox item in lst.Items)
            {
                if (item.IsChecked == true)
                {
                    Console.WriteLine((item.Content + " is checked."));

                }
            }
        }
    }
}
WPF Check Box List










24.17.CheckBox
24.17.1.Add CheckBox to StackPanelAdd CheckBox to StackPanel
24.17.2.Three-State CheckBoxThree-State CheckBox
24.17.3.A CheckBox with a skew transformationA CheckBox with a skew transformation
24.17.4.Customized CheckBoxCustomized CheckBox
24.17.5.CheckBox StyleCheckBox Style
24.17.6.CheckBox ListCheckBox List