public static void Update(ServiceExportBill.export_bill dh)
 {
     sExportBill.UpdateExportBill(dh);
 }
 private static ExportBill ConvertExportBill(ServiceExportBill.export_bill item)
 {
     ExportBill ex = new ExportBill();
     ex.id = item.id;
     ex.date = item.date;
     ex.id_user = item.id_user;
     ex.total_price = item.total_price;
     ex.status = item.status;
     var u = sUser.GetUserById(item.id_user);
     ex.name_user = u.name;
     ex.email_user = u.email;
     ex.phone_number = u.phone_number;
     return ex;
 }
 public static void Insert(ServiceExportBill.export_bill dh)
 {
     sExportBill.AddExportBill(dh);
 }