bool IsSourceSelected(EventSource source) { return(_selectedSource == null || source == _selectedSource); }
void _manager_SourceAddedEvent(NewsManager manager, EventSource source) { WinFormsHelper.BeginManagedInvoke(this, UpdateUI); }
void _manager_SourceItemsAddedEvent(NewsManager manager, EventSource source, IEnumerable <EventBase> events) { WinFormsHelper.BeginFilteredManagedInvoke(this, TimeSpan.FromSeconds(1), UpdateUI); }