Abhijit's World of .NET

Programmatically Changing Session State Behavior in ASP.NET 4.0 January 15, 2011

Session is one of most important state management in ASP.NET. We can enable or disabled session state either in web.config or using @Page directive’s   EnableSessionState attributes. But there was no provision to change the session state at runtime till date in ASP.NET. But using  ASP.NET 4.0, we can change the session  state programmatically . The .NET 4.0 framework adds a new method SetSessionStateBehavior  to the HttpContext class for ASP.NET. This method required SessionStatebehavior  value to set the current session mode. To call SetSessionStateBehavior   simply create a new HttpModule by Implementing IHttModule and hook the BeginRequest event. Most important you can only use the SetSessionStateBehavior  until the AcquireRequestState event is fired, because AcquireRequestState  Occurs when ASP.NET acquires the current state  that is associated with the current request

While calling SetSessionStatebehavior, You can pass the following values as SessionStatebehavior  :

• Default: This is default setting which means  everything works as before
• Disabled: Turned of Session Sate for Current Request.
• ReadOnly: Read only access to Session State;
• Required: Enabled session state for both Read and Write Access;

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