要加载Xaml文件：

Stream s = File.OpenRead("yourfile.xaml"); Control control = (Control)XamlReader.Load(s); 

并创建BitmapImage：

  public static void SaveImage(Control control, string path) { using (MemoryStream stream = new MemoryStream()) { GenerateImage(element, stream); Image img = Image.FromStream(stream); img.Save(path); } } public static void GenerateImage(Control control, Stream result) { //Set background to white control.Background = Brushes.White; Size controlSize = RetrieveDesiredSize(control); Rect rect = new Rect(0, 0, controlSize.Width, controlSize.Height); RenderTargetBitmap rtb = new RenderTargetBitmap((int)controlSize.Width, (int)controlSize.Height, IMAGE_DPI, IMAGE_DPI, PixelFormats.Pbgra32); control.Arrange(rect); rtb.Render(control); PngBitmapEncoder png = new PngBitmapEncoder(); png.Frames.Add(BitmapFrame.Create(rtb)); png.Save(result); } private static Size RetrieveDesiredSize(Control control) { control.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity)); return control.DesiredSize; } 

确保包含正确的库！ 这些类位于System.Windows.Media 。

希望这可以帮助！

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