private async void LoadMoreImple(object obj) { count++; var newList = new WebServiceHelper().GetNewsFeeds(10, count); if (newList.Count > 0) { IsLoadMoreNeed = false; Feeds = new ObservableCollection <NewsFeed>(Feeds.Concat(newList)); } else { LoadText = "Feed ended"; await Task.Delay(1500); IsLoadMoreNeed = false; } }