public static ResponseBase InsertOrUpdate(ThoiGianTinhNhipDoTT obj)
        {
            var rs = new ResponseBase();

            try
            {
                var db  = new PMSEntities();
                var old = db.ThoiGianTinhNhipDoTTs.FirstOrDefault(x => x.Ngay == obj.Ngay && x.MaChuyen == obj.MaChuyen);
                if (old == null)
                {
                    db.ThoiGianTinhNhipDoTTs.Add(obj);
                }
                else
                {
                    old.ThoiGianBatDau = obj.ThoiGianBatDau;
                }
                db.SaveChanges();
                rs.IsSuccess = true;
            }
            catch (Exception)
            {
                rs.IsSuccess = false;
            }
            return(rs);
        }
        public int SuaThongTinOBJ(ThoiGianTinhNhipDoTT obj)
        {
            int kq = 0;

            try
            {
                string sql = "update ThoiGianTinhNhipDoTT set ThoiGianBatDau =N'" + obj.ThoiGianBatDau + "' where Ngay ='" + obj.Ngay + "' and MaChuyen=" + obj.MaChuyen + "";
                kq = dbclass.TruyVan_XuLy(sql);

                return(kq);
            }
            catch (Exception)
            {
                return(kq);
            }
        }
        public int ThemOBJ(ThoiGianTinhNhipDoTT obj)
        {
            int kq = 0;

            try
            {
                string sql = "insert into ThoiGianTinhNhipDoTT (Ngay, MaChuyen, ThoiGianBatDau) values(N'" + obj.Ngay + "'," + obj.MaChuyen + ",'" + obj.ThoiGianBatDau + "')";
                kq = dbclass.TruyVan_XuLy(sql);

                return(kq);
            }
            catch (Exception)
            {
                return(kq);
            }
        }