protected void CreateUser_Click(object sender, EventArgs e) { DataBaseHandler db = new DataBaseHandler(); db.AddUser(FirstName.Text, LastName.Text, Email.Text, Phone.Text, UserName.Text, Password.Text); DataSet ds = new DataSet(); ds = db.CheckUser(Email.Text, Password.Text); if (ds != null) { Session["UserInfo"] = ds; Response.Redirect("Default.aspx"); } }