var brush = new ImageBrush();
brush.ImageSource = new BitmapImage(new Uri("/Pics/Test/1/1_10.png", UriKind.Relative));
MainButton.Background = brush;

#if DEBUG && !DISABLE_XAML_GENERATED_BREAK_ON_UNHANDLED_EXCEPTION
        UnhandledException += (sender, e) =>
        {
            if (global::System.Diagnostics.Debugger.IsAttached) global::System.Diagnostics.Debugger.Break();
        };