plugin=diff is not implemented.
http://yellow.ribbon.to/~tuotehhou/index.php?%2BSL%2B%E3%82%BD%E3%83%BC%E3%82%B9%E3%82%B3%E3%83%BC%E3%83%89%E3%81%A7DataGrid%E8%A1%8C%E3%81%AE%E3%83%98%E3%83%83%E3%83%80%E3%83%BC%E3%82%92%E3%82%AB%E3%82%B9%E3%82%BF%E3%83%9E%E3%82%A4%E3%82%BA
plugin=diff is not implemented.