How to check if user is logged in and has a active session in ASP.NET?

Question

Is it possible to check if a user is logged in and has a active session in ASP.NET using only the username? I need some sort of service to return true/false based on username as input. I don't have access to Page.User.Identity.IsAuthenticated

Answer 1

yes it is possible. Once the user has logged on set a session variable I like to make a class for Users then turn it into a session variable:

eg:

   userData loggedIn = new userData(username, email);
   Session["User"] = loggedIn

Then when I'm checking if somebody is logged in I use something in the page load like

    if (Session["User"] != null);