Understanding Covariance and Contravariance in C# 4.0

Question

I watched a video about it on Channel 9 but I didn\'t really understand it much.

Can someone please give me a simple example about these that\'s easy to understand?

Answer 1

The following article deals with co- and contravariance with delegates: http://msdn.microsoft.com/en-us/library/ms173174.aspx.

Perhaps it is useful to you, even if you're not into delegates yet. I found it to be quite easy to understand.