The article is somewhat old, but it still deserves a visit from whom, like me is studying for 70-305 or 70-315:
ASP.NET validation internals
Published by
Alfred Myers
I have been interested in computers since I got my hands on a magazine about digital electronics back in 1983 and programming them has been paying the bills since 1991. Having focused on Microsoft-centric technology stacks for the best part of two decades, in recent years I’ve been educating myself on open source technologies such as Linux, networking and the open web platform. View all posts by Alfred Myers