private void Bind(DateTime start, DateTime end)
    {
        int TotalCount = 0; //总记录数
        int TotalPage  = 1; //总页数

        int page = 1;

        try
        {
            page = int.Parse(Request.QueryString["Page"]);
            if (ViewState["page"] != null)
            {
                page = int.Parse(ViewState["page"].ToString());
                ViewState["page"] = null;
            }
        }
        catch { }

        IList <GoodsOrderInfo> list = orderDal.GetSellCityTop(start, end, HttpUtility.UrlDecode(Request.Cookies["nick"].Value));

        TotalCount      = list.Count;
        pds.DataSource  = list;
        pds.AllowPaging = true;
        pds.PageSize    = 20;
        if (TotalCount == 0)
        {
            TotalPage = 1;
        }
        else
        {
            if (TotalCount % pds.PageSize == 0)
            {
                TotalPage = TotalCount / pds.PageSize;
            }
            else
            {
                TotalPage = TotalCount / pds.PageSize + 1;
            }
        }

        pds.CurrentPageIndex = page - 1;
        lblCurrentPage.Text  = "共" + TotalCount.ToString() + "条记录 当前页:" + page + "/" + TotalPage;

        lnkFrist.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=1&" + "start=" + start.ToShortDateString() + "&end=" + end.ToShortDateString();
        if (!pds.IsFirstPage)
        {
            lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(page - 1) + "&" + "start=" + start.ToShortDateString() + "&end=" + end.ToShortDateString();
        }

        if (!pds.IsLastPage)
        {
            lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(page + 1) + "&" + "start=" + start.ToShortDateString() + "&end=" + end.ToShortDateString();
        }
        lnkEnd.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + TotalPage + "&" + "start=" + start.ToShortDateString() + "&end=" + end.ToShortDateString();

        Rpt_PageVisit.DataSource = pds;
        Rpt_PageVisit.DataBind();
        TB_Start.Text = start.ToString("yyyy-MM-dd");
        TB_End.Text   = end.ToString("yyyy-MM-dd");
    }