How do I override ToString() and implement generic?

Question

I have code that I want to make the following changes:

1. How do I override ToString()? It says: A static member ...ToString(System.Collections.Generic.List)\'

Answer 1

You cannot use extension methods to override an existing method.

From the spec http://msdn.microsoft.com/en-us/library/bb383977.aspx

"You can use extension methods to extend a class or interface, but not to override them. An extension method with the same name and signature as an interface or class method will never be called. At compile time, extension methods always have lower priority than instance methods defined in the type itself."