ViewState and Server.Transfer Best practices

ViewState and Server.Transfer Best practices

Scenario :

Server.Transfer("destiny.aspx",true);

Above statement will cause ViewState is invalid exception

Reason :

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 state

Option 1

use

Server.Transfer("destiny.aspx",false);

- 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 pages

http://msdn2.microsoft.com/en-us/library/6c3yckfw(vs.71).aspx



I hope this helps!.

Regards,
-Vinayak