<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:src="clr-namespace:ListBoxEvent"
x:Class="ListBoxEvent.Pane1">
<Canvas.Resources>
<src:myColors x:Key="Colors"/>
</Canvas.Resources>
<StackPanel Margin="10, 10, 3, 3">
<ListBox Name="myListBox" HorizontalAlignment="Left" SelectionMode="Extended"
Width="265" Height="55"
ItemsSource="{Binding Source={StaticResource Colors}}" IsSynchronizedWithCurrentItem="true">
</ListBox>
<StackPanel Orientation="Horizontal" Margin="10">
<Button Content="_Select all" Click="selectAll_Click"/>
<Button Content="_Unselect all" Click="unselectAll_Click"/>
</StackPanel>
</StackPanel>
</Canvas>
//File:Window.xaml.cs
using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media;
using System.Collections.ObjectModel;
namespace ListBoxEvent
{
public class myColors : ObservableCollection<string>
{
public myColors()
{
Add("LightBlue");
Add("Pink");
Add("Red");
Add("Purple");
Add("Blue");
Add("Green");
}
}
public partial class Pane1 : Canvas
{
public Pane1() : base()
{
InitializeComponent();
}
void selectAll_Click(object sender, RoutedEventArgs e)
{
myListBox.SelectAll();
}
void unselectAll_Click(object sender, RoutedEventArgs e)
{
myListBox.UnselectAll();
}
}
}
