gridview data download in asp.net

gridview print as design show on the form

in asp.net.

you can   download the show data on grid or listview or any control in aps.net. just change bold and underline.

 protected void Button1_Click(object sender, EventArgs e)

        {

            Response.Clear();

            Response.AddHeader("content-disposition", "attachment;filename=myexcelfile.doc");

            Response.ContentType = "application/vnd.xls";

            StringWriter sw = new StringWriter();

            HtmlTextWriter htw = new HtmlTextWriter(sw);

            GridView1.RenderControl(htw);

            Response.Write(sw.ToString());

            Response.End();

        }

        public override void VerifyRenderingInServerForm(Control control)

        {

            //base.VerifyRenderingInServerForm(control);

        }