I think it is so cool how web control objects are so well integrated in the page object level. I am speaking particularly about validation controls. Today I encountered a RequiredField Validator in a web control not being triggered when I clicked the button in the .aspx. I was sure everything was correct in the .ascx and the .aspx. It turned out that in the web control I had disabled the validator (reqTxtWhatever.Enabled = false;) for a given condition and failed to re-enable it. This stuff works great as long as I don't do anything stupid.