背景画像を設定する

もっと簡単な方法があったのでメモ。

	// Create source.
	BitmapImage bi = new BitmapImage();
	bi.BeginInit();
	bi.UriSource = new Uri("test.png", UriKind.Relative);
	bi.EndInit();

	// Create the image element.
	Image simpleImage = new Image();    
	simpleImage.Width = bi.Width;
	simpleImage.Height = bi.Height; 

	// Set the image source.
	simpleImage.Source = bi;

	this.Content = simpleImage;
	this.Background = Brushes.Red;

背景に画像を表示するのにこんなにコードを書くのか・・・。

public partial class TestWindow : Window {
	public TestWindow()
	{
		InitializeComponent();


		ImageDrawing imageDrawing = new ImageDrawing();
		imageDrawing.ImageSource = new BitmapImage(new Uri("test.png", UriKind.Relative));
		imageDrawing.Rect = new Rect(0, 0,
					imageDrawing.ImageSource.Width,
					imageDrawing.ImageSource.Height);
	
		DrawingImage drawingImageSource = new DrawingImage(imageDrawing);

                  // Freeze the DrawingImage for performance benefits.
                  drawingImageSource.Freeze();

		Image imageControl = new Image();
		imageControl.Stretch = Stretch.None;
		imageControl.Source = drawingImageSource;
		imageControl.HorizontalAlignment = HorizontalAlignment.Left;
		imageControl.VerticalAlignment = VerticalAlignment.Top;

		this.Content = imageControl;
		this.Background = Brushes.Red;
	}
}

参照
MSDN BitmapImage クラス
MSDN ImageDrawing クラス