In this month's installment of C# Corner, we look at one of the new features in C# 4.0, the next version of C# that will be delivered in Visual Studio (VS) 2010. Looking ahead to specific features in ...

You can use covariance and contravariance to provide polymorphic extension to delegates, arrays, and generics in C#. Here’s how. The C# programming language provides support for variance in two ways: ...

Covariance and contravariance are precise terms that describe which conversions are safe on parameters and return types. Learn practical definitions for those terms, what new constructs will be ...