NEWS Scrolling in asp.net from database using Literal Control

In source code(aspx):-

         <marquee direction="left" onmouseout="this.start()" onmouseover="this.stop()"

                    scrolldelay="10" style="height: 11px">                   

                   

             <asp:Literal ID="lt1" runat="server"></asp:Literal></marquee>

In .cs code:-

SqlConnection SqlCon = new SqlConnection(ConfigurationManager.ConnectionStrings["ConNews"].ConnectionString);

protected void Page_Load(object sender, EventArgs e)

    {

        SqlDataAdapter da = new SqlDataAdapter("select * from newsmarquee", SqlCon);

        DataSet ds = new DataSet();

        da.Fill(ds, "newsmarquee");

        string s1;

        for (int num = 0; num < ds.Tables[0].Rows.Count-1; num++)

        {

            string url = "~/Images/meta3.gif";//dr[num]["ItemPath"].ToString();

            Image newpic = new Image();

            newpic.ImageUrl = url;

            ////lt1.Controls.Add(newpic);

            s1 = ds.Tables["newsmarquee"].Rows[num][1].ToString();

            lt1.Text = s1.ToString();

        }

       

}