EXCEL的导出

具体实现代码：

  protected void EXCEL_Click(object sender, EventArgs e)
         {
             ToExcel(GridView1);
         }

         public void ToExcel(System.Web.UI.Control ctl)
         {
             HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=grid.xls");
           //  HttpContext.Current.Response.Write("<metahttp-equiv=Content-Type content=text/html; charset=UTF-8>");
             HttpContext.Current.Response.Charset = "UTF-8";            //"GB2312";//
             HttpContext.Current.Response.ContentEncoding = Encoding.UTF8;
             HttpContext.Current.Response.ContentType = "application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword
             ctl.Page.EnableViewState = false;
             System.IO.StringWriter tw = new System.IO.StringWriter();
             System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);
             ctl.RenderControl(hw);
             HttpContext.Current.Response.Write(tw.ToString());
             HttpContext.Current.Response.End();
         }

前台只需要添加一个button按钮就可。