ASP.nET remember me coding

In web application, in remember me, you can save the user name & password to the cookie. In any one visit any page, you can check the cookie that there is any user information. If user information available then user is loged in. You can do it in the Global.asax.
Example:

void Session_Start(object sender, EventArgs e)
    {
        // Code that runs when a new session is started
        if (Request.Cookies["UserCookie"] != null)
        {
            HttpCookie cookie = Request.Cookies["UserCookie"];
            string userEmail = cookie["email"];
            string password = cookie["password"];
            // you can perform your login works
       }
}