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CompositionTarget.Rendering Event

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Occurs when the core Silverlight rendering process renders a frame.

Namespace:  System.Windows.Media
Assembly:  System.Windows (in System.Windows.dll)


Public Shared Event Rendering As EventHandler
public static event EventHandler Rendering


Use the general EventHandler delegate for this event. Rendering uses the EventHandler delegate and EventArgs event data by its strict signature. However, you can base a handler on EventHandler and then cast the event data to RenderingEventArgs. Then you can get the RenderingTime property value for that occurrence of the event.

When the event occurs, it means that there is a frame of visuals available to render to the Silverlight content surface. You can then modify the visuals or any other aspect of your application on a per-frame basis within your handler.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.