public FeedVideoInfoControlViewModel(FeedItem feedItem, IFeedGroup feedGroup, NicoVideo nicoVideo, PageManager pageMan) : base(nicoVideo, pageMan) { IsUnread = feedItem.ToReactivePropertyAsSynchronized(x => x.IsUnread) .AddTo(_CompositeDisposable); _FafFeedItem = feedItem; _FeedGroup = feedGroup; }