public FeedDetailsViewModel(Channel channel)
        {
            RootChannel = channel;
            feedDetailsDataModel = new FeedDetailsDataModel(channel);
            feedDetailsDataModel.PropertyChanged += new System.ComponentModel.PropertyChangedEventHandler(feedDetailsDataModel_PropertyChanged);
            Items = feedDetailsDataModel.Items;

            ReadItem = new RelayCommand((param) => ReadItemBody(param as Item));
        }
 public void GetFeedDetails(Channel chan)
 {
     if (chan != null)
         FeedDetail = new FeedDetailsDataModel(chan);
     else
         FeedDetail = null;
 }