如何在uwp上模糊网格背景？

如果您想了解更多信息,请访问MSDN页面.

不透明度不是模糊效果.要创建纯模糊效果,您可以使用RendertargetBitmap或Win2D.

我更喜欢使用Win2D,因为高斯模糊效果是显式的,可以更精确地配置:

using (var stream = await Content.RenderToRandomAccessStream())
{
    var device = new CanvasDevice();
    var bitmap = await CanvasBitmap.LoadAsync(device, stream);

    var renderer = new CanvasRenderTarget(device, 
                                          bitmap.SizeInPixels.Width, 
                                          bitmap.SizeInPixels.Height, bitmap.Dpi);

    using (var ds = renderer.CreateDrawingSession())
    {
        var blur = new GaussianBlurEffect();
        blur.BlurAmount = 5.0f;
        blur.Source = bitmap;
        ds.DrawImage(blur);
    }

    stream.Seek(0);
    await renderer.SaveAsync(stream, CanvasBitmapFileFormat.Png);

    BitmapImage image = new BitmapImage();
    image.SetSource(stream);
    paneBackground.ImageSource = image;
}