SqlConnection conn = new SqlConnection();
            conn.Open();
            SqlDataAdapter da = new SqlDataAdapter(sql, conn);
            DataSet ds = new DataSet();
            da.Fill(ds, "Product_gongqiu");

            PagedDataSource pds = new PagedDataSource();
            pds.DataSource = ds.Tables["Product_gongqiu"].DefaultView;
            //开启分页
            pds.AllowPaging = true;
            //显示显示的行数
            pds.PageSize = 8;
            //定义变量保存当前页索引
            int curPage;

            //判断当前页是否有跳转请求
            if (Request.QueryString["page"] != null)
                curPage = Convert.ToInt32(Request.QueryString["page"]);
            else
                curPage = 1;
            pds.CurrentPageIndex = curPage - 1;

            Label1.Text = "当前第" + curPage.ToString() + "页";
            Label2.Text = "共" + pds.PageCount.ToString() + "页";

            if (!pds.IsFirstPage)
            { //定义"上一页"超级连接的URL为:当前执行页面的虚拟路径,并传递下一页面的索引植
                prev.NavigateUrl = "@@@.aspx?page=" + (curPage - 1) + "&sqltext=" + sql + "&tiaojiantext=" + tiaojian;
            }
            if (!pds.IsLastPage)
            { //下一页
                next.NavigateUrl = "@@@.aspx?page=" + (curPage + 1) + "&sqltext=" + sql + "&tiaojiantext=" + tiaojian;
            }

            DataList1.DataSource = pds;
            DataList1.DataBind();