asp.net，Datalist控件分页显示数据，绑定datatable

private void databindfunction()
{
            DataView myDataView = myDataTable.DefaultView;
            PagedDataSource myPagedDS = new PagedDataSource();
            myPagedDS.DataSource = myDataView;

            myPagedDS.AllowPaging = true;
            myPagedDS.PageSize = 6;
            myPagedDS.CurrentPageIndex = int.Parse(ViewState["pageindex"].ToString());

            if (!myPagedDS.IsFirstPage)
            {
                lkPre.Visible = true;
            }
            else
            {
                lkPre.Visible = false;
            }

            if (!myPagedDS.IsLastPage)
            {
                lkNext.Visible = true;
            }
            else
            {
                lkNext.Visible = false;
            }

            myDatalist.DataSource = myPagedDS;
            myDatalist.DataBind();