Updatepanel 中导出excel的解决办法

（1）在UpdatePanel中加以下代码  （测试过可以的）：

   


ControlID为你导出Excel的按钮

（2）另外一种办法（没有测试过）

        GridView1.EnableViewState = false;         HttpContext.Current.Response.Charset = "GB2312";         HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF7;         HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());         HttpContext.Current.Response.ContentType = FileType;         this.EnableViewState = false;         StringWriter tw = new StringWriter();         HtmlTextWriter hw = new HtmlTextWriter(tw);         GridView1.RenderControl(hw);         HttpContext.Current.Response.Write(tw.ToString());         HttpContext.Current.Response.End();