public string GetTenLoaiKMByID(int idLKM)
        {
            string    query = "SELECT * FROM LoaiKhuyenMai WHERE id=" + idLKM;
            DataTable table = DataProvider.Instance.ExecuteQuery(query);

            foreach (DataRow item in table.Rows)
            {
                LoaiKhuyenMaiDTO lkm = new LoaiKhuyenMaiDTO(item);
                return(lkm.TenLoaiKM);
            }
            return(string.Empty);
        }
        public int GetIDByTenLoaiKM(string tenKM)
        {
            string    query = "SELECT * FROM LoaiKhuyenMai WHERE TenLoaiKM = N'" + tenKM + "'";
            DataTable table = DataProvider.Instance.ExecuteQuery(query);

            foreach (DataRow item in table.Rows)
            {
                LoaiKhuyenMaiDTO lkm = new LoaiKhuyenMaiDTO(item);
                return(lkm.Id);
            }
            return(-1);
        }
        public List <LoaiKhuyenMaiDTO> GetListLoaiSP()
        {
            List <LoaiKhuyenMaiDTO> dsKM = new List <LoaiKhuyenMaiDTO>();
            string    query = ("SELECT * From LoaiKhuyenMai");
            DataTable data  = DataProvider.Instance.ExecuteQuery(query);

            foreach (DataRow item in data.Rows)
            {
                LoaiKhuyenMaiDTO lkm = new LoaiKhuyenMaiDTO(item);
                dsKM.Add(lkm);
            }
            return(dsKM);
        }