Question

Current in code-behind, I dynamically create a WPF Image control and bind the source to a custom databinding. This will eventually be added to a grid to provide a background image:

Image myImage = new Image();
myImage.Stretch = Stretch.UniformToFill;
myImage.SetBinding(Image.SourceProperty, myBinding);

The problem is that I want to tile this image, so the only way I can find to do this is to create an ImageBrush and set the TileMode property. But there is no “SetBinding” function, so how can I accomplish what I need?

ImageBrush myBrush = new ImageBrush();
myBrush.TileMode = TileMode.Tile;
// Can't do this!
myBrush.SetBinding(ImageBrush.SourceImageProperty, myBinding);

Are there any other ways to tile an image like this in code-behind?

Answer 1

You need not to change anything but use the BindingOperations:

BindingOperations.SetBinding(myBrush, ImageBrush.ImageSourceProperty, myBinding);

And you need to define the Viewport and the fill the viewport with brush:

MyBrush.Viewport = new Rect(0, 0, 0.1, 0.1);
// Create a rectangle and paint it with the ImageBrush.
Rectangle rec = new Rectangle();
rec.Stroke = Brushes.LimeGreen;
rec.StrokeThickness = 1;
rec.Fill = MyBrush;