public MainWindowViewModel(DataRepository repo)
{
this.repo = repo.ThrowIfNull();
feeds = new ObservableCollection<FeedViewModel>(
repo.AllFeeds().Select(feed => new FeedViewModel(repo, feed)));
feedItems = new ObservableCollection<FeedItemViewModel>(
repo.AllFeedItems().Select(feedItem => new FeedItemViewModel(feedItem)));
FeedsView = CollectionViewSource.GetDefaultView(feeds);
FeedsView.CurrentChanged += HandleFeedsViewCurrentChanged;
FeedItemsView = CollectionViewSource.GetDefaultView(feedItems);
FeedItemsView.Filter = FeedItemsViewFilter;
FeedItemsView.SortDescriptions.Add(new SortDescription("PublishDate",
ListSortDirection.Descending));
NewFeedCommand = new RelayCommand(param => NewFeed());
ModifyFeedCommand = new RelayCommand(param => ModifyFeed());
ClearFeedItemsFilterCommand = new RelayCommand(param => ClearFeedItemsFilter());
repo.FeedAdded += HandleFeedAdded;
repo.FeedModified += HandleFeedModified;
repo.FeedDeleted += HandleFeedDeleted;
repo.FeedItemsAdded += HandleFeedItemsAdded;
FeedsView.MoveCurrentTo(null);
}
public FeedViewModel(DataRepository repo, Feed feed) : base(feed)
{
this.repo = repo.ThrowIfNull();
ProcessFeedCommand = new RelayCommand(param => ProcessFeed(), param => true);
SaveFeedCommand = new RelayCommand(param => SaveFeed(), param => true);
DeleteFeedCommand = new RelayCommand(param => DeleteFeed());
}
