State Management :: Session Variable Looses Its Value On Next Page?

Jul 23, 2010

IDE: MS Visual Studio 2008 / SQL Server 2005 Express / SQL Server Management Studio Express 2005

Skills: Beginner

Well im trying to make a custom login page(im not using ASP.net Login Control), in Admin.aspx page

UserName and Pasword are entered in textboxes , then Code-Behind file checks the UserName and Pasword against DataBase(it stores the UserName and Pasword) if both are correct Session["IsAuthenticated"] = "true" and then user is redirected to AdminArea.aspx

AdminArea.aspx checks if ( Session["IsAuthenticated"].ToString() == "false" ) then redirect to Error page..

but i get NullReferenceException on AdminArea.aspx because Session["IsAuthenticated"] is null , i dont know why ?

I even tried PreviousPage.Session["IsAuthneticated"] but still got the same error..

I debugged,and found out Admin.aspx saves value in Session["IsAuthenticated"] succesfully but AdminArea.aspx looses the Session["IsAuthenticated"]..so it gets null

My Question is how to retain value in Session["IsAuthenticated"] when page is changed (I want to retrieve value in next page from Session)?

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