Web控件导出至Excel/Word

#region Web控件导出至Excel/Word
        /// <summary>
        /// Web控件导出至Excel
        /// </summary>
        /// <param name="ctl">Web控件</param>
        /// <param name="FileName">文件名</param>
        public static void ToExcel(GridView ctl, string FileName)
        {
            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(Encoding.UTF8.GetBytes(FileName)) + ".xls");
            HttpContext.Current.Response.Charset = "GB2312";
            HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            HttpContext.Current.Response.ContentType = "application/vnd.xls";

            System.IO.StringWriter tw = new System.IO.StringWriter();
            System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(tw);
            ctl.RenderControl(hw);
            HttpContext.Current.Response.Write(tw.ToString());
            HttpContext.Current.Response.End();
        }

        /// <summary>
        /// Web控件导出至Word
        /// </summary>
        /// <param name="ctl">Web控件</param>
        /// <param name="FileName">文件名</param>
        public static void ToWord(System.Web.UI.Control ctl, string FileName)
        {

            HttpContext.Current.Response.Clear();
            HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(Encoding.UTF8.GetBytes(FileName)) + ".doc");
            HttpContext.Current.Response.Charset = "GB2312";
            HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            HttpContext.Current.Response.ContentType = "application/vnd.doc";

            System.IO.StringWriter tw = new System.IO.StringWriter();
            System.Web.UI.HtmlTextWriter hw = new HtmlTextWriter(tw);
            ctl.RenderControl(hw);
            HttpContext.Current.Response.Write(tw.ToString());
            HttpContext.Current.Response.End();
        }
        #endregion