Lambda Expression: == vs. .Equals()

Question

This is a purely academic question, but what\'s the difference between using == and .Equals within a lambda expression and which one is preferred?

Code exam

Answer 1

They can be overloaded separately, so they could provide different answers. See http://msdn.microsoft.com/en-us/library/ms173147(VS.80).aspx which discusses how to overload each. Typically they will be the same, but there's no guarantee of that. So it depends on what type the lambda object is.