ASP.NET DATAGRIDVIWE控件导出Execle

    public void ExportExcel12(Control ctl, string fileName)
    {
        Response.Clear();
        Response.ContentType = "application/vnd.ms-excel";
        Response.Charset = "GB2312";
        Response.AppendHeader("Content-Disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8) + ".xls");
        Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");  //设置输出流为简体中文
        this.EnableViewState = false;
        Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=GB2312\">");
        System.IO.StringWriter sw = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(sw);
        ctl.RenderControl(hw);
        Response.Write(sw.ToString());
        Response.End();
    }