How to redirect to login page if not logged in

Question

hi i am developing a website in c# my web site has a menu in which some items redirect to pages which contains private data so i want to restrict those pages to redirect to login page if the user has not been logged in to yet if he is logged in those items redirect to the page which it has to actually can any body help me

Vimal Kandasamy · Answer

Hi Its depending upon storing user logged info. Ex: If you store user info in Sessions while logging. Like below Session[uname] = username.Text then you can check it at the time of redirecting to private pages by getting its value using Session[uname].ToString(); if user not yet logged in and you didn't store username value in Sessionthen it contains null or its throw NullReferenceException then you can restrict user and redirect to login page.