protected void Button14_Click(object sender, EventArgs e) { Response.Clear(); Response.AddHeader("content-disposition", "attachment;filename=FileName.xls"); Response.Charset = "gb2312"; Response.ContentType = "application/vnd.xls"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); GridView1.RenderControl(htw); Response.Write(sw.ToString()); Response.End(); } public override void VerifyRenderingInServerForm(System.Web.UI.Control control) { }