How to set the child control size same as ellipse when resiz

Question

I am creating a user control which has a shape (a curved line) inside a circle. I used ellipse control to create the circle.Because ellipse is not a content control i cannot set line as a child to ellipse.How to change the size of the shape inside the ellipse when resize or how to change the overlying control size accordingly?

Rahul Bansal · Answer

Check the ration of child size and ellipse size then set the child size on basis of ellipse size like ellipse width and height.