public int Add_TrainsDAL(Train t)
 {
     try
     {
         using (var orr = new Online_Railway_reservation_systemEntities())
         {
             orr.Configuration.ProxyCreationEnabled = false;
             orr.Add_Trains(t.Train_Name, t.Origin_Station_ID, t.Destination_Station_ID, t.Status, t.Train_Type);
             return 1;
         }
     }
     catch (Exception)
     {
         return 0;
     }
 }