Use Mouse.AddPreviewMouseDownHandler(myEllipse, PreviewMouseDownEllipse);

  

<Window x:Class="WpfApplication1.AttachedEvents"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Event Examples" Height="300" Width="300">
  <Grid HorizontalAlignment="Center" VerticalAlignment="Center">
    <Button>
      <Grid>
        <Grid.ColumnDefinitions>
          <ColumnDefinition />
          <ColumnDefinition />
        </Grid.ColumnDefinitions>

          <Ellipse x:Name="myEllipse" Canvas.Left="1" Canvas.Top="1" Width="16" Height="16" Fill="Yellow" Stroke="Black" />

          <Ellipse Canvas.Left="4.5" Canvas.Top="5" Width="2.5" Height="3" Fill="Black" />
          <Ellipse Canvas.Left="11" Canvas.Top="5" Width="2.5" Height="3" Fill="Black" />
          <Path Data="M 5,10 A 3,3 0 0 0 13,10" Stroke="Black" />
      
        <TextBlock Grid.Column="1">Click!</TextBlock>
      </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 AttachedEvents : System.Windows.Window
    {

        public AttachedEvents()
        {
            InitializeComponent();

            Mouse.AddPreviewMouseDownHandler(myEllipse, PreviewMouseDownEllipse);
            Mouse.AddMouseDownHandler(myEllipse, MouseDownEllipse);

        }

        void PreviewMouseDownEllipse(object sender, RoutedEventArgs e)
        { Debug.WriteLine("PreviewMouseDownEllipse"); }

        void MouseDownEllipse(object sender, RoutedEventArgs e)
        { Debug.WriteLine("MouseDownEllipse"); }

    }
}

Related examples in the same category

1.	A line which monitors the mouse entering its area
2.	Respond When the User Rotates the Mouse Wheel
3.	Mouse Position and TranslateTransform
4.	Mouse Position
5.	Detect whether the mouse button is pressed or released using the MouseButtonState property.
6.	Handler MouseLeftButtonDown and MouseLeftButtonUp events
7.	Mouse Enter and leave a Border
8.	Make an object follow the mouse pointer as it moves on the screen.
9.	Use Mouse.AddMouseDownHandler(myEllipse, MouseDownEllipse);
10.	Use Mouse.PreviewMouseDown /Mouse.MouseDown Attribute from Grid element
11.	Grid MouseMove
12.	Grid MouseLeftButtonDown
13.	Grid MouseLeftButtonUp
14.	UI Element Mouse Clicked Events
15.	Handles the MouseDown event on the Canvas
16.	Handles the MouseDown event on the UniformGrid
17.	Mouse cursor override and clear
18.	Check the mouse event source
19.	Use the Mouse Wheel action methods that are defined by the IScrollInfo interface
20.	Mouse.LostMouseCaptureEvent
21.	Use Mouse.Capture to let a Control capture an event
22.	Capture Mouse Ellipse
23.	Get mouse position with Mouse.GetPosition
24.	Point Hit Test
25.	Replease mouse with Mouse.Capture(null)
26.	Hit Result Behavior

Use Mouse.AddPreviewMouseDownHandler(myEllipse, PreviewMouseDownEllipse); : Mouse « Windows Presentation Foundation « C# / C Sharp

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