protected void btnGotoUpdate_Click(object sender, EventArgs e) { //create an object clsOrder order = new clsOrder(); //Check if string could be convert to int if (CheckIfInt(tbxOrderNo.Text) == false) { lblError.Text = "Please enter an integer"; } //Check if the orderNo is exist else if (order.FilterByOrderNoAndCustomerNo(Convert.ToInt32(tbxOrderNo.Text), CustomerNo) == false) { lblError.Text = "Could not find this OrderNo in your account."; } //Check if the parcel was Dispatching or Dispathched else if (order.Status == "Dispatching" || order.Status == "Dispatched" || order.Status == "Cancel") { lblError.Text = "The Percel was Dispatching, Dispatched or Cancel."; } else { //Store the OrderNo in to Sec Sec.OrderNo = Convert.ToInt32(tbxOrderNo.Text); //go to Update Response.Redirect("Update.aspx"); } }