public void Save()
        {
            VideoGameXmlDataService videoGameXmlDataService = new VideoGameXmlDataService();

            using (videoGameXmlDataService)
            {
                videoGameXmlDataService.Write(_videoGames);
            }
        }
        public VideoGameRepository()
        {
            VideoGameXmlDataService videoGameXmlDataService = new VideoGameXmlDataService();

            using (videoGameXmlDataService)
            {
                _videoGames = videoGameXmlDataService.Read() as List <VideoGame>;
            }
        }