asp.net - get username after login -

i want username after login doesn't work.

public partial class login : system.web.ui.page     {         string struser;          protected void login1_loggedin(object sender, eventargs e)         {             struser = membership.getuser().username;              response.redirect("home");         }         protected void login1_authenticate(object sender, authenticateeventargs e)         {             struser = membership.getuser().username;             response.redirect("home");         }     } 

this error:

membership.getuser().username null, because new principal object not attached current httpcontext object yet.

so need explicitly retrieve logged-in user using username login control.

update: credit jadarnel27

protected void login1_authenticate(object sender, authenticateeventargs e) {   // username login control , retrieves user info explicitly   membership user = membership.getuser(login1.username);    ... }