protected void Page_Load(object sender, EventArgs e) { // using QueryString //if (Request.QueryString["status"] != null && // Request.QueryString["status"].ToString() == "Login") //{ //} if (Session["status"] != null && Session["status"].ToString() == "Login") { //successful login // to create a new instance from a class // X varName = new X(); DataSet1TableAdapters.MyUsersTableAdapter taUsers = new DataSet1TableAdapters.MyUsersTableAdapter(); string UName = taUsers.getNameByUsername(Session["username"].ToString()); lblTitle.Text = UName + " به سایت من خوش اومدی"; } else { Response.Redirect("login.aspx"); } }