ObservableAsPropertyHelper raising PropertyChanged on thread other than the UI thread in Silverlight

[Aesir]

In the "Implementing search with ObservableAsPropertyHelper" blog post it's stated

One of the cool things about ObservableAsPropertyHelper, is that it guarantees that it will run notifications on the UI thread via the Dispatcher so that you don’t have to think about what thread the observable notification came in on.

When I use the following code

_CurrentCustomer = new ObservableAsPropertyHelper(currentNameObservable, _ => this.RaisePropertyChanged("CurrentCustomer"));

I get a System.UnauthorizedAccessException("Invalid cross-thread access.") in ReactiveObject.RaisePropertyChanged(string propertyName) every time currentNameObservable raises a new value.

The problem seems to be that the default IScheduler for ObservableAsPropertyHelper is not the Dispatcher. At the end of the RxApp static constructor you have

if (InUnitTestRunner())
{
//...
}
else
{
DeferredScheduler = Scheduler.Dispatcher;
}

if SILVERLIGHT

DeferredScheduler = Scheduler.ThreadPool;

else

TaskpoolScheduler = Scheduler.TaskPool;

endif

which resets the DeferredScheduler for Silverlight to Scheduler.ThreadPool. I'm guessing that assignment for #if SILVERLIGHT should have been

TaskpoolScheduler = Scheduler.ThreadPool;

[anaisbetts]

Yes, I just noticed that this morning

[anaisbetts]

Fixed as of today