Move a rectangle around a canvas

Question

I have a canvas in the middle of my application with controls around it. I have a socket that recieves Points and saves them in a list.

I draw small 4x4 rectangles on th

Answer 1

Use Rendering event

CompositionTarget.Rendering += UpdateRectangles;

...

 protected void UpdateRectangles(object sender, EventArgs e)
 {
    // here some stuff
    Canvas.SetLeft(rectangle, location);

 }

Consider using CacheMode="BitmapCache" for them.