Gridview导出到Excel

#region #导出到Excel
    protected void Button2_Click(object sender, EventArgs e)

    {

        Response.ClearContent();

        Response.AddHeader("content-disposition", "attachment;filename=MyExcelFile.xls");

        Response.ContentType = "application/excel";

        StringWriter sw = new StringWriter();

        HtmlTextWriter htw = new HtmlTextWriter(sw);

        GridView1.RenderControl(htw);

        Response.Write(sw.ToString());

        Response.End();

    }

    #endregion

    public override void VerifyRenderingInServerForm(Control control)

    {

    }