private void UpdateSelectAllFeeds()
{
var newValue = !SelectedFeeds.Any() ? false : (SelectedFeeds.Count == FeedManager.Feeds.Count ? true : (bool?)null);
if (selectAllFeeds != newValue)
{
selectAllFeeds = newValue;
RaisePropertyChanged(nameof(SelectAllFeeds));
}
}
public void SelectFeed(Feed feedToSelect)
{
if (SelectedFeeds.Any())
{
SelectedFeeds.Clear();
}
if (feedToSelect != null)
{
SelectedFeeds.Add(feedToSelect);
}
}
private void SelectedFeedsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
SelectedFeed = SelectedFeeds.FirstOrDefault();
UpdateSelectAllFeeds();
}
