private void UpdatePodcasts(NotifyCollectionChangedEventArgs e)
{
CoreDispatcher dispatcher = CoreApplication.MainView.CoreWindow.Dispatcher;
UIThread.Dispatch(() =>
{
if (e == null)
{
Podcasts.Clear();
Podcasts.AddAll(Data.Podcasts.Select((podcast) => new PodcastSummaryViewModel(podcast, ServiceContext)));
return;
}
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (var item in e.NewItems)
{
Podcast podcast = item as Podcast;
if (podcast != null)
{
Podcasts.Add(new PodcastSummaryViewModel(podcast, ServiceContext));
}
else
{
foreach (Podcast podcastItem in (IEnumerable <Podcast>)item)
{
Podcasts.Add(new PodcastSummaryViewModel(podcastItem, ServiceContext));
}
}
}
return;
}
if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (Podcast podcast in e.OldItems)
{
Podcasts.RemoveFirst((podcastViewModel) => podcastViewModel.Data.Id == podcast.Id);
}
}
});
}
