Polymorphism Through Extension Methods?

Question

I have a class library which contain some base classes and others that are derived from them. In this class library, I\'m taking advantage of polymorphism to do what I want it t

Answer 1

No, that won't work.

Extension methods are statically dispatched, using the same mechanism as overload resolution.

If you have a variable of compile-time type Base, the compiler will always call the base extension method, regardless of the runtime type.

Instead, you can make the base extension method check the runtime type and call the appropriate other extension method.