Does View State effect Performance?

Hey, it will affect the performance only if you are storing a lot of data in the view state, since the data is being stored on the page itself in hidden field....

http://www.c-sharpcorner.com/UploadFile/78d182/Asp-Net-state-management-techniques/

http://www.codeproject.com/Articles/101888/ViewState-Various-ways-to-reduce-performance-overh#d