title: How can you tell if viewstate in an ASP.Net application has been tampered with?
body: <p>During a discussion about security, a developer on my team asked if there was a way to tell if viewstate has been tampered with. I'm embarrassed to say that I didnt know the answer. I told him I would find out, but thought I would give someone on here a chance to answer first. I know there is some automatic validation, but is there a way to do it manually if event validation is not enabled?</p>