protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { DBSCMDataContext dc = new DBSCMDataContext(); var data = dc.Sysnotice.Single(p => p.Nid == int.Parse(Request["Nid"])); string strPhyPath = Server.MapPath(data.Nfileaddress.Trim()); PublicMethod.FileDown(this, strPhyPath, data.Nfilename); // Response.Redirect(data.AnnexUrl.Trim()); } }