RedditStoreApp.ViewModels.SubredditViewModel.RefreshAction C# (CSharp) Метод

        private async void RefreshAction()
        {
            this.IsLoading = true;
            _posts.Clear();

            await DataNs.Helpers.EnsureCompletion(_subreddit.Posts.Refresh);

            foreach (var post in _subreddit.Posts)
            {
                _posts.Add(new PostViewModel(post));
            }

            this.IsLoading = false;
        }