private void ArticleService_MessageCollectionStrReceivedEvent(string message)
        {
            var mesList = GetColFromStr.GetColFromString(message);
            MessageToMessageClient converter = new MessageToMessageClient();

            MessagesColl = new ObservableCollection <MessageClient>(converter.Convert(mesList));
        }
        public MainViewModel()
        {
            var articleService = new ArticleServiceCallback();

            articleService.MessageCollectionStrReceivedEvent += ArticleService_MessageCollectionStrReceivedEvent;;

            _articleServiceProxy = new ArticleServiceProxy(articleService);
            _serviceChannel      = _articleServiceProxy.ChannelFactory.CreateChannel();

            Article = File.ReadAllText(AppDomain.CurrentDomain.BaseDirectory + "Article.txt");

            var colStr  = _serviceChannel.GetMessagesColStr();
            var mesList = GetColFromStr.GetColFromString(colStr);
            MessageToMessageClient converter = new MessageToMessageClient();

            MessagesColl = new ObservableCollection <MessageClient>(converter.Convert(mesList));
        }