custom user login with ASP.NET using SQL and C# -

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i've been working on asp.net application , i've managed create login , register webpage linked sql database using c# server-side code.

problem:
couldn't find method keep user logged in while opening different pages, best method 100% customizable, preferably tot using "logincontrols".

time!

the user tied session. pages have property available. it's httpsessionstate object, , can house logged in user information. now, can encapsulate lot of work building user class has static accessors pull data out of session. example:

public static class user {     public static bool isauthenticated     {                 {             var session = httpcontext.current.session;             return !string.isnullorempty(session["loggedinuser"]);         }     }      public static string username     {                 {             return session["loggedinuser"];         }     }      public static bool login(string username, string password)     {         // login (i.e. verify user name , password          // build kind of session indicator         httpcontext.current.session["loggedinuser"] = username;          return true;     }      public static void logout()     {         if (!isauthenticated) { return; }         httpcontext.current.session.abandon();     } }

and pages can stuff this:

user.login(txtusername.text, txtpassword.text);

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