<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="AddHandler" Height="300" Width="300">
<Grid HorizontalAlignment="Center" VerticalAlignment="Center">
<Button>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Canvas Width="20" Height="18" VerticalAlignment="Center">
<Ellipse x:Name="myEllipse" Canvas.Left="1" Canvas.Top="1" Width="16" Height="16"
Fill="Yellow" Stroke="Black" />
</Canvas>
</Grid>
</Button>
</Grid>
</Window>
//File:Window.xaml.cs
using System;
using System.Windows;
using System.Diagnostics;
using System.Windows.Shapes;
using System.Windows.Input;
namespace WpfApplication1
{
public partial class Window1 : System.Windows.Window
{
public Window1()
{
InitializeComponent();
myEllipse.AddHandler(Ellipse.MouseDownEvent,new MouseButtonEventHandler(MouseDownEllipse));
myEllipse.AddHandler(Ellipse.PreviewMouseDownEvent,new MouseButtonEventHandler(PreviewMouseDownEllipse));
}
void PreviewMouseDownEllipse(object sender, RoutedEventArgs e){
Debug.WriteLine("PreviewMouseDownEllipse");
}
void MouseDownEllipse(object sender, RoutedEventArgs e){
Debug.WriteLine("MouseDownEllipse");
}
}
}
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