public static List <int> LayDSMaBan()
        {
            List <int> _ds = new List <int>();

            _ds = GoiMonDAO.LayDSMaBan();
            return(_ds);
        }
        public static bool XoaGoiMonTheoMaBan(int maBan)
        {
            bool kq = GoiMonDAO.XoaGoiMonTheoMaBan(maBan);

            return(kq);
        }
        public static int LayMaGoiMonCanLap()
        {
            int maGM = GoiMonDAO.MaTuTang();

            return(maGM);
        }
        public static int LayMaGoiMonTuMaBan(int maBan)
        {
            int maGM = GoiMonDAO.LayMaGoiMonTuMaBan(maBan);

            return(maGM);
        }
        public static bool ThemGoiMon(GoiMonDTO gm)
        {
            bool kq = GoiMonDAO.ThemGoiMon(gm);

            return(kq);
        }