protected void Page_Load(object sender, EventArgs e) { // 若未对SortIndex和CreateTime进行排序,在这里进行排序 if (!SearchCriterion.HasOrdered("SortIndex") && SearchCriterion.HasOrdered("CreateTime")) { SearchCriterion.SetOrder("SortIndex"); SearchCriterion.SetOrder("CreateTime"); } ents = SysGroup.FindAll(SearchCriterion); this.PageState.Add("DtList", ents); }