public static string GetLopNameByLopId(Int32 lopId) { if (lopId < 0) { return(CommonConstant.EMPTY); } QLMamNon.Dao.QLMamNonDs.LopDataTable lopTable = StaticDataFacade.Get(StaticDataKeys.LopHoc) as QLMamNon.Dao.QLMamNonDs.LopDataTable; QLMamNon.Dao.QLMamNonDs.LopRow lopRow = lopTable.FindByLopId(lopId); if (lopRow != null) { return(lopRow.Name); } return(CommonConstant.EMPTY); }