public IList<DanhMucItemData> GetDanhMucItemPaging(System.String whereCondition, System.Int32 pageSize, System.Int32 currentPage, System.String sortByColumns)
 {
     try
     {
         var domain = new DanhMucItemDomainObject(ConnectionString);
         return domain.GetDanhMucItemPaging(whereCondition, pageSize, currentPage, sortByColumns);
     }
     catch (Exception ex)
     {
         ErrorLog.WebLog("[GetDanhMucItemPaging]", ex.Message);
         return new List<DanhMucItemData>();
     }
 }