public bool Them(TheKhachHangDTO the)
        {
            this.connect();
            bool   bCheck = true;
            string query  = "INSERT INTO TheKhachHang([id],[HoTen],[SDT],[NgaySinh],[CMND],[DiemTichLuy])"
                            + " VALUES(@ID,@HOTEN,@SDT,@NGAYSINH,@CMND,@DIEMTICHLUY)";

            this.cm = new SqlCommand(query, cnn);
            this.cm.Parameters.Add(new SqlParameter("@ID", String.Concat("KH", sMaThe)));
            this.cm.Parameters.Add(new SqlParameter("@HOTEN", the.HoTen.Trim()));
            this.cm.Parameters.Add(new SqlParameter("@SDT", the.SDT.Trim()));
            this.cm.Parameters.Add(new SqlParameter("@NGAYSINH", the.NgaySinh.Date));
            this.cm.Parameters.Add(new SqlParameter("@CMND", the.CMND.Trim()));
            this.cm.Parameters.Add(new SqlParameter("@DIEMTICHLUY", 20));
            try
            {
                this.cm.ExecuteNonQuery();
                this.disconnect();
            }
            catch (Exception ex)
            {
                this.disconnect();
                bCheck = false;
                throw ex;
            }
            return(bCheck);
        }
        public bool Them(string hoten, string sdt, DateTime ngaysinh, string cmnd, int diemtichluy)
        {
            TheKhachHangDTO the = new TheKhachHangDTO(hoten, sdt, ngaysinh, cmnd, diemtichluy);

            if (dataThe.Them(the))
            {
                return(true);
            }
            return(false);
        }