Chain Of Responsibility Implementation

I was reading my twitter feed and came across a retweet from Glenn Block. The original was from Anoop Madhusudanan which pointed to his blog post called “Implementing Chain of Responsibility Design Pattern in C# using Managed Extensibility Framework (MEF)”.  It sounded very interesting, so I dug in.

[UPDATE: I have since updated this post.  Look for the block at the bottom]\