UIElement.Clip Property

Elements outside the geometry will be visually clipped in the rendered layout. The geometry does not have to be rectangular.

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.

.NET Framework

.NET Framework Client Profile

Reference

Other Resources