public int Update_PassengersDAL(Passenger p)
 {
     try
     {
         using (var orr = new Online_Railway_reservation_systemEntities())
         {
             orr.Configuration.ProxyCreationEnabled = false;
             orr.Update_Passengers(p.PNR, p.Passenger_Name, p.Date_Of_Birth, p.Card_Code, p.Gender, p.Email, p.Phone_Number, p.Address);
             return 1;
         }
     }
     catch (Exception)
     {
         return 0;
     }
 }
 public int Update_Passengers(Passenger p)
 {
     PassengersBAL passengersBal = new PassengersBAL();
     return passengersBal.Update_PassengersBAL(p);
 }
 public int Add_Passengers(Passenger p)
 {
     PassengersBAL passengersBal = new PassengersBAL();
     return passengersBal.Add_PassengersBAL(p);
 }
 public int Add_PassengersBAL(Passenger p)
 {
     PassengersDAL pdal = new PassengersDAL();
     return pdal.Add_PassengersDAL(p);
 }