private void ShowMasterWorks() { if (Request.QueryString["Cid"] != null) { int Cid = Int32.Parse(Request.QueryString["Cid"].ToString()); LearnSite.BLL.Works wbll = new LearnSite.BLL.Works(); DLworks.DataSource = wbll.ShowCourseGoodWorks(Cid);//显示该学案所有优秀作品 DLworks.DataBind(); string ctitle = ""; if (Request.QueryString["Ctitle"] != null) { ctitle = Request.QueryString["Ctitle"].ToString(); } if (DLworks.Items.Count > 0) { Labelmsg.Text = "[" + ctitle + "] 作品数:" + DLworks.Items.Count.ToString() + "件"; } else { Labelmsg.Text = "暂无推荐作品!"; } } else { Labelmsg.Text = "请选择右侧课节!"; } }