public override void VerifyRenderingInServerForm(Control control)
    { }
    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        Response.Clear();
        Response.Buffer = true;
        Response.Charset = "gb2312";
        Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
        Response.AppendHeader("content-disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode("数据导出", System.Text.Encoding.UTF8) + ".xls\"");
        Response.ContentType = "Application/ms-excel";
        System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
        this.Label1.RenderControl(oHtmlTextWriter);
        this.GridView1.RenderControl(oHtmlTextWriter);
        Response.Output.Write(oStringWriter.ToString());
        Response.Flush();
        Response.End();
    }