ช่วดูตรง dropdownlist หน่อยค่ะ คือจะเอาค่าใน hyperlink มาใส่ใน dropdown แต่มัน error ไม่รู้ว่าเขียนถูกรึป่าวอ่ะคะ

        DataTable dt = new DataTable();
        DataRow dr;
		
		//*** Column ***//
        dt.Columns.Add("CustomerID");
        dt.Columns.Add("Name");
        dt.Columns.Add("Email");
        dt.Columns.Add("CountryCode");
        dt.Columns.Add("Budget");
        dt.Columns.Add("Used");
		
		//*** Rows ***//
		dr = dt.NewRow();
        dr["CustomerID"] = "C001";
        dr["Name"] = "Win Weerachai";
        dr["Email"] = "[email protected]";
        dr["CountryCode"] = "TH";
        dr["Budget"] = "1000000";
        dr["Used"] = "600000";
        dt.Rows.Add(dr);

		//*** Rows ***//
		dr = dt.NewRow();
        dr["CustomerID"] = "C002";
        dr["Name"] = "John Smith";
        dr["Email"] = "[email protected]";
        dr["CountryCode"] = "EN";
        dr["Budget"] = "2000000";
        dr["Used"] = "800000";
        dt.Rows.Add(dr);

		//*** Rows ***//
		dr = dt.NewRow();
        dr["CustomerID"] = "C003";
        dr["Name"] = "Jame Born";
        dr["Email"] = "[email protected]";
        dr["CountryCode"] = "US";
        dr["Budget"] = "3000000";
        dr["Used"] = "600000";
        dt.Rows.Add(dr);
		
		//*** Rows ***//
		dr = dt.NewRow();
        dr["CustomerID"] = "C004";
        dr["Name"] = "Chalee Angel";
        dr["Email"] = "[email protected]";
        dr["CountryCode"] = "US";
        dr["Budget"] = "4000000";
        dr["Used"] = "100000";
        dt.Rows.Add(dr);

		this.DropDownList1.DataSource = dt;

protected void Page_Load(object sender, EventArgs e)
    {
        DirectoryInfo myDirInfo;
        myDirInfo = new DirectoryInfo(Server.MapPath("upload/"));
        FileInfo[] arrFileInfo = myDirInfo.GetFiles("*.*");
        foreach (FileInfo myFileInfo in arrFileInfo)
        {
            
            HyperLink hyp = new HyperLink();
            hyp.NavigateUrl = "Main.aspx?mov=" + myFileInfo.Name;
            hyp.Text = myFileInfo.Name;

           Literal lit = new Literal();
           lit.Text = "<br />";

        //   Panel1.Controls.Add(hyp);
       //    Panel1.Controls.Add(lit);

           DataTable dt = new DataTable();
           DataRow dr;
           dt.Columns.Add("list");
           dr = dt.NewRow();
           dr["list"] = "hyp";
           this.DropDownList1.DataSource = dt;