protected void Page_Load(object sender, EventArgs e) { if (Page.IsPostBack) { string user_name = Request.Form["user_name"]; string first_name = Request.Form["first_name"]; string last_name = Request.Form["last_name"]; string password = Request.Form["password"]; string male = Request.Form["male"]; string email = Request.Form["email"]; SqlUtility util = new SqlUtility(); if (util.CreateUser(user_name, first_name, last_name, password, male, email)) { Session["username"] = user_name; Response.Redirect("profilepage.aspx"); } else { Response.Write("<script type=\"text/javascript\">alert('user already exists')</script>"); } }//if }