public bool DeleteTramTrungGian(int idTuyen, int idTram)
        {
            DAO_TramTrungGian daoTramTG = new DAO_TramTrungGian();

            return(daoTramTG.DeleteTramTrungGian(idTram, idTuyen));
        }
        public bool UpdateTramTrungGian(int stt, int idTuyen, int idTram)
        {
            DAO_TramTrungGian daoTramTG = new DAO_TramTrungGian();

            return(daoTramTG.UpdateTramTrungGian(stt, idTuyen, idTram));
        }
        public DataTable GetTramTrungGianByID(int id)
        {
            DAO_TramTrungGian daoTramTG = new DAO_TramTrungGian();

            return(daoTramTG.GetTramTrungGianByID(id));
        }
        public bool InsertTramTrungGian(int idTuyen, int idtram)
        {
            DAO_TramTrungGian daoTramTG = new DAO_TramTrungGian();

            return(daoTramTG.InsertTramTrungGian(idTuyen, idtram));
        }
        public List <TramTrungGian> GetTramTrungGian(int id)
        {
            DAO_TramTrungGian daoTramTG = new DAO_TramTrungGian();

            return(daoTramTG.GetTramTrungGian(id));
        }