关于DataGrid数据导入Excel乱码

当导数据到Excel 中时有时会出现乱码


原来代码

  private static void WriteToExcelFromDataGrid(DataGrid dg, string fileName)
  {
   //StringWriter tw = new StringWriter(new CultureInfo( "zh-CHS", false));
   StringWriter tw = new StringWriter();
   HtmlTextWriter hw = new HtmlTextWriter(tw);
   dg.RenderControl(hw);
   
   System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
   response.Clear();
   response.ContentEncoding=System.Text.Encoding.GetEncoding("utf-8");
   response.ContentType ="application/vnd.ms-excel";
   response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);

数据挖掘实验室

   response.Charset = "gb2312";
   response.Write(tw.ToString());
   response.End();
  }

正确

   response.ContentEncoding=System.Text.Encoding.GetEncoding("utf-7");


原因 utf-8不支持中文