能不能这样使用pagedDataSource

PagedDataSource pds = new PagedDataSource();
        pds.DataSource = realty.BLL.NewsLyManager.getnewsbynid(id);
        pds.AllowPaging = true;
        pds.PageSize = 3;
        pds.CurrentPageIndex = Pager;
        setEnable(pds);
        string ht = "";
        IList<NewsLy> list = (List<NewsLy>)pds;