删除以前由ElementCompositionPreview.SetElementChildVisual设置的Sprit

Question

_compositor = ElementCompositionPreview.GetElementVisual(this).Compositor;
_blurSprite = _compositor.CreateSpriteVisual();
ElementCompositionPreview.SetElementChildVisual(MainPage.Instance.ContentRoot, _blurSprite);

如何删除已设置为Byt ElementCompositionPreview的_blurSprite？

Answer 1

ElementCompositionPreview.SetElementChildVisual(MainPage.Instance.ContentRoot, null);