Re positioning canvas control

Question

I have Grid with three columns and layout is like

radio button | Canvas Control | radio button

For some feature of my application I need to take a screenshot of

Answer 1

You may avoid the layout problem by using an intermediate DrawingVisual:

var renderTargetBitmap = new RenderTargetBitmap(
    (int)canvasControl.ActualWidth, (int)canvasControl.ActualHeight,
    96, 96, PixelFormats.Default);

var visual = new DrawingVisual();

using (var dc = visual.RenderOpen())
{
    dc.DrawRectangle(
        new VisualBrush(canvasControl),
        null,
        new Rect(0, 0, canvasControl.ActualWidth, canvasControl.ActualHeight));
}

renderTargetBitmap.Render(visual);