DataGrid导出成word或excel

    private  void  ExportDataGrid(string FileType, string FileName)         // 从DataGrid导出
         {
            Response.Charset = "GB2312";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
            Response.AppendHeader("Content-Disposition", "attachment;filename=" +HttpUtility.UrlEncode(FileName,Encoding.UTF8).ToString());
            Response.ContentType = FileType;
            this.EnableViewState =false;
            StringWriter tw = new StringWriter();
            HtmlTextWriter hw =new HtmlTextWriter(tw);
            DataGrid1.RenderControl(hw);
            Response.Write(tw.ToString());
            Response.End();//结束，否则会输出下面的内容
        }
private  void  Button1_Click(object sender, System.EventArgs e)
         {
            ExportDataGrid("application/ms-word", "overred.doc");//生成word
        }

        private  void  Button2_Click(object sender, System.EventArgs e)
         {
            ExportDataGrid("application/ms-excel", "overred.xls");//生成excel
        }