public List <DTO_HangHoaChart> GetTiLeHangHoa() { using (var db = new QLPhongKaraokeEntities()) { DateTime dt = DateTime.Today; List <GetListHangHoaChart_Result> rd = db.GetListHangHoaChart(dt).ToList(); List <DTO_HangHoaChart> dto = new List <DTO_HangHoaChart>(); for (int i = 0; i < rd.Count; i++) { dto.Add(new DTO_HangHoaChart() { Name = rd[i].Ten, soluong = rd[i].soluong.GetValueOrDefault() }); } return(dto); } }