List <int> PositionCodes = new List <int>();        //职位编号可以为多项

    protected void Page_Load(object sender, EventArgs e)
    {
        if (string.IsNullOrEmpty(CookieManager.GetCookieValue("PositionCode").ToString()))
        {
            return;
        }
        else
        {
            if (CookieManager.GetCookieValue("PositionCode").ToString() != "'0'")
            {
                foreach (string PositionCode in CookieManager.GetCookieValue("PositionCode").ToString().Split(','))
                {
                    PositionCodes.Add(Convert.ToInt32(PositionCode));
                }
            }
            else
            {
                PositionCodes.Add(0);
            }
        }

        if (!IsPostBack)
        {
            this.txtMenuName.Focus();
            menuBll.BindDdl(ddlParents, PositionCodes);
            SetText();
        }
    }