How to tell if a line intersects a polygon in C#?

Question

I have a question very similar to this:

How to know if a line intersects a plane in C#?

I am searching for a method (in C#) tha

Answer 1

To detect collisions between polygons in our silverlight map project, we're using clipper library:

Free for commercial use, small size, great performance and very easy to use.

Clipper webpage