How to do c# collision detection?

Question

Are there any predefined methods in c# which allow for collision detection?

I am new to c# and am trying to get collision detection of two ellipses are there any pre

Answer 1

Provided that your Ellipses are always circles (i.e. their Width and Height properties are set to the same value) and they always have the Canvas.Left and Canvas.Top properties set, the following helper method checks for a collision:

public static bool CheckCollision(Ellipse e1, Ellipse e2)
{
    var r1 = e1.ActualWidth / 2;
    var x1 = Canvas.GetLeft(e1) + r1;
    var y1 = Canvas.GetTop(e1) + r1;
    var r2 = e2.ActualWidth / 2;
    var x2 = Canvas.GetLeft(e2) + r2;
    var y2 = Canvas.GetTop(e2) + r2;
    var d = new Vector(x2 - x1, y2 - y1);
    return d.Length <= r1 + r2;
}