WPF: Performance Adjustment

1. 2d graphics and Imaging
1. Use drawing instead of shape as much as possible, because drawing does not support layout and event
2. Use drawingvisual to draw backgrounds and other places that do not require layout or event.
3. Decode to the minimum size when using a graphic
4. During animation, call renderoptions. setbitmapscalingmode () to set the image to lowquality.
5. Cache brush.
   // Set the minimum and maximum relative sizes for regenerating the tiled brush. renderoptions. setcacheinvalidationthresholdminimum (drawingbrush, 0.5); renderoptions. setcacheinvalidationthresholdmaximum (drawingbrush, 2.0); // The tiled brush will be regenerated when the size is // 0.5x, 0.25x (and so forth) // and // 2x, 4x, 8x (and so forth) // of the original size. // set the caching hint option for the brush. renderoptions. setcachinghint (drawingbrush, cachinghint. cache );