public ActionResult GetTreeSelectJson(HelpSearchView searchView) { var data = _HelpService.GetList(searchView) .Select(u => new TreeSelectModel { id = u.Id, text = u.Title }).ToList(); //默认显示未分组 data.Insert(0, new TreeSelectModel() { id = "-1", text = "未分组" }); return(Content(data.ToJson())); }