private void TrySubscribeEnumerable(object obj)
{
var enumerable = obj as IEnumerable;
if (enumerable == null)
{
var observable = Observable2.Coerce <object>(obj);
if (observable == null)
{
SetScalarValue(obj);
}
else
{
var collection = new ObservableCollection <object>();
SetScalarValue(collection);
source = observable;
listSource = collection;
subscribing = Dispatcher.CurrentDispatcher.BeginInvoke((Action)SubscribeCollection, DispatcherPriority.DataBind);
}
}
else
{
listSource = enumerable;
var dispatcher = Dispatcher.CurrentDispatcher;
var notifier = new DispatchChangesEnumerable(dispatcher, DispatcherPriority.DataBind, enumerable);
SetScalarValue(notifier);
var notifyingSource = obj as INotifyCollectionChanged;
if (notifyingSource != null)
{
NotifyCollectionChangedEventHandler handler = (sender, e) => notifier.OnCollectionChanged(e);
notifyingSource.CollectionChanged += handler;
subscription.Disposable = Disposable.Create(() => notifyingSource.CollectionChanged -= handler);
}
else
{
var observable = Observable2.Coerce <object>(obj);
if (observable != null)
{
source = observable;
subscribing = dispatcher.BeginInvoke((Action <DispatchChangesEnumerable>)SubscribeNotify, DispatcherPriority.DataBind, notifier);
}
}
}
}
private void SubscribeNotify(DispatchChangesEnumerable notifier)
{
Contract.Requires(notifier != null);
Contract.Requires(source != null);
var reset = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
subscription.SetDisposableIndirectly(() =>
source.Subscribe(
_ => notifier.OnCollectionChanged(reset),
() => PresentationTraceSources.DataBindingSource.TraceEvent(
TraceEventType.Verbose,
0,
"Subscription: Notification binding completed.")));
}
