EnableViewState : ■Note Even if you set EnableViewState to false, the control can still hold onto a smaller amount of view state information that it deems critical for proper functioning. This privileged view state information is known as controlstate, and it can never be disabled. However, in a well-designed control the size required for control state will be significantly smaller than the size of the entire view state. Control state is new in ASP.NET 2.0.