private void ReadWork()
    {
        if (Request.QueryString["Snum"] != null)
        {
            string Snum = Request.QueryString["Snum"].ToString();
            LearnSite.Model.Students smodel = new LearnSite.Model.Students();
            LearnSite.BLL.Students   sbll   = new LearnSite.BLL.Students();
            smodel           = sbll.SnumGetModel(Snum);
            LabelSnum.Text   = Snum;
            LabelSname.Text  = smodel.Sname;
            LabelWscore.Text = smodel.Sscore.ToString();
            int wgrade = smodel.Sgrade.Value;
            if (Request.QueryString["Sgrade"] != null)
            {
                wgrade = Int32.Parse(Request.QueryString["Sgrade"].ToString());
            }
            int wterm = Int32.Parse(LearnSite.Common.XmlHelp.GetTerm());
            if (Request.QueryString["Sterm"] != null)
            {
                wterm = Int32.Parse(Request.QueryString["Sterm"].ToString());
            }

            LearnSite.BLL.Works ws = new LearnSite.BLL.Works();
            DDLstore.DataSource     = ws.ShowThisTermWorksCircle(Snum, wgrade, wterm);
            DDLstore.DataTextField  = "Mtitle";
            DDLstore.DataValueField = "Wurl";
            DDLstore.DataBind();
            int curindex = Int32.Parse(lbcurindex.Text);
            if (DDLstore.Items.Count > 0)
            {
                int allindex = DDLstore.Items.Count - 1;
                if (curindex == allindex)
                {
                    lbcurindex.Text = "0";
                }
                if (curindex < allindex)
                {
                    DDLstore.SelectedIndex = curindex;
                }
            }
        }
    }