<Window 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="SDKSample.EllipseEventHandlingWindow"
    Title="Click the Ellipse">
    <Ellipse Name="clickableEllipse" Fill="Blue" MouseUp="clickableEllipse_MouseUp" />
</Window>