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How to: Improve Rendering Performance by Caching an Element |
03/30/2017 |
.net-framework |
|
article |
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4739c1fc-60ba-4c46-aba6-f6c1a2688f19 |
7 |
dotnet-bot |
dotnetcontent |
wpickett |
How to: Improve Rendering Performance by Caching an Element
Use the xref:System.Windows.Media.BitmapCache class to improve rendering performance of a complex xref:System.Windows.UIElement. To cache an element, create a new instance of the xref:System.Windows.Media.BitmapCache class and assign it to the element's xref:System.Windows.UIElement.CacheMode%2A property. You can reuse a xref:System.Windows.Media.BitmapCache efficiently in a xref:System.Windows.Media.BitmapCacheBrush.
Example
The following code example shows how to create a complex element and cache it as a bitmap, which improves performance when the element is animated. The element is a canvas that holds shape geometries with many vertices. A xref:System.Windows.Media.BitmapCache with default values is assigned to the xref:System.Windows.UIElement.CacheMode%2A of the canvas, and an animation shows the smooth scaling of the cached bitmap.
[!code-xamlSystem.Windows.Media.BitmapCache#_BitmapCacheXAML]
See Also
xref:System.Windows.Media.BitmapCache
xref:System.Windows.Media.BitmapCacheBrush
xref:System.Windows.UIElement.CacheMode%2A
How to: Use a Cached Element as a Brush