Aaargh! Why is my ViewState so large? Even when setting the EnableViewState property to false for each control and the page itself there’s still an enourmous amount of ViewState… How can this be?
Well, it turns out that there are some other items that get stored in the ViewState. We’re in luck though because Paul Wilson has written this article with (supposedly) everything you ever wanted to know about the ViewState.
That should clear up a few things.