System.Web.UI.HtmlControls.HtmlForm.RenderControl C# (CSharp) Method

		public override void RenderControl (HtmlTextWriter w)
		{
			base.RenderControl (w);
		}

        public static void xlsport(GridView grd, string _fnm, Page p)
        {
            grd.Visible = true;
            gridstrip(grd);    
            grd.DataBind();

            HtmlForm form = new HtmlForm();
            string attachment = "attachment; filename=" + _fnm + csclass.ranfn() + ".xls";

            HttpContext.Current.Response.ClearContent();
            HttpContext.Current.Response.AddHeader("content-disposition", attachment);
            HttpContext.Current.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            p.EnableViewState = false;
            HttpContext.Current.Response.Charset = string.Empty;

            System.IO.StringWriter stw = new System.IO.StringWriter();
            HtmlTextWriter htextw = new HtmlTextWriter(stw);

            form.Controls.Add(grd);
            p.Controls.Add(form);

            form.RenderControl(htextw);
            HttpContext.Current.Response.Write(stw.ToString());
            HttpContext.Current.Response.End();
        }