protected void HtmlWriteGV(System.Web.UI.Control gv)
        {

//方法一，此方法需要添加下面的 public override void VerifyRenderingInServerForm(Control control) 方法，另外前台页面需添加<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ZCNewStatistics.aspx.cs" Inherits="uiniRMS.Admin.ZCNewStatistics" EnableEventValidation = "false" %>
            //gv.Page.EnableViewState = false;
            //Response.Clear();

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

            //Response.ContentType = "application/vnd.xls";

            //System.IO.StringWriter stringWrite = new System.IO.StringWriter();

            //System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);

            //gv.RenderControl(htmlWrite);

            //Response.Write(stringWrite.ToString());

            //Response.End();

//方法二

            StringBuilder sb = new StringBuilder();
            StringWriter sw = new StringWriter(sb);
            HtmlTextWriter htw = new HtmlTextWriter(sw);

            Page page = new Page();
            HtmlForm form = new HtmlForm();

            gv.EnableViewState = false;

            // Deshabilitar la validación de eventos, sólo asp.net 2
            page.EnableEventValidation = false;

            // Realiza las inicializaciones de la instancia de la clase Page que requieran los dise