private string getInfos()
    {
        string    json         = "";
        string    searchString = Request.Form["searchString"];
        string    sort         = Request.Form["sort"];
        string    order        = Request.Form["order"];
        DataTable dt           = CostSharingInfoManage.getInfos(searchString);

        dt = PinYinHelper.SortByPinYin(dt, sort, order);
        if (dt != null)
        {
            json = JsonHelper.DataTableToJsonForEasyUiDataGridLoadDataMethod(dt.Rows.Count, dt).Trim();
        }
        return(json);
    }