public DON_VI_DKDT_ApprResult DON_VI_DKDT_Appr(DON_VI_DKDT_SearchResult data) { try { using (var dataContext = new OOAD_EDUManagementDataContext()) { DON_VI_DKDT_ApprResult result = dataContext.DON_VI_DKDT_Appr( data.maDonViDKDT, data.maTrangThaiDuyet, data.maNguoiDuyet, data.thoiGianDuyet == null ? "" : data.thoiGianDuyet.Value.ToString(Constants.FormatDate)).FirstOrDefault(); return result; } } catch (Exception e) { return new DON_VI_DKDT_ApprResult() { RESULT = "-1", ERRORDESC = e.Message }; } }