UIElement.Clip Property
Gets or sets the geometry used to define the outline of the contents of an element. This is a dependency property.
Assembly: PresentationCore (in PresentationCore.dll)
This example shows how to define a framework element's Clip region. To define a clip, use a Geometry (for example, an EllipseGeometry to set the element's Clip property. Only the area that is within the region of the geometry will be visible.
The following example shows an Image element without a defined clip region. Because no clip region is defined, the entire image is displayed.
<Image Source="sampleImages\Waterlilies.jpg" Width="200" Height="150" HorizontalAlignment="Left" />

In the next example, an identical Image is created, except that it has a defined clip region. Only the part of the image that is within the area the EllipseGeometry will be displayed.
<Image Source="sampleImages\Waterlilies.jpg" Width="200" Height="150" HorizontalAlignment="Left"> <Image.Clip> <EllipseGeometry RadiusX="100" RadiusY="75" Center="100,75"/> </Image.Clip> </Image>

The following example shows how animate a framework element's Clip region. In this example, an EllipseGeometry is used to define an elliptical clip region for an Image element. A PointAnimation animates the ellipse geometry's Center property from (0, 0) to (200, 150). The animation starts playing after the image is loaded and repeats indefinitely.
<Image Source="sampleImages\Waterlilies.jpg" Width="200" Height="150" HorizontalAlignment="Left"> <Image.Clip> <EllipseGeometry x:Name="MyEllipseGeometry1" RadiusX="100" RadiusY="75" Center="100,75"/> </Image.Clip> <Image.Triggers> <EventTrigger RoutedEvent="Image.Loaded"> <BeginStoryboard> <Storyboard> <PointAnimation Storyboard.TargetName="MyEllipseGeometry1" Storyboard.TargetProperty="(EllipseGeometry.Center)" From="0,0" To="200,150" Duration="0:0:3" RepeatBehavior="Forever" AutoReverse="True" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Image.Triggers> </Image>
For the full sample, see the Clip Region Sample.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.