ViewState and Server.Transfer Best practicesScenario
Above statement will cause ViewState is invalid exceptionReason
By default EnableViewStateMac is set to true, and hence on every page life cycle , it tries to validate the value of the ViewState(for security reason) ,which is a part of forms collection(__ViewState - hidden field) and by ViewState design at any given point you can post to only one form...Hence in the prior case , it tries to compare the ViewState of the source with the destiny and hence the above mismatch happens :)
Best practices to Transfer the control to the other page without affecting the view stateOption 1
- The Second parameter in the above statement is set to false , Hence it is not preserving the prvious page folrms collections..Option 2
Passing Server control value between pageshttp://msdn2.microsoft.com/en-us/library/6c3yckfw(vs.71).aspx
I hope this helps!.