WhenAnyValue with complex type

[lou8566]

Hello all,

I am building a Blazor WASM application.

In the constructor of my view model I have primitive types and complex types, when I use this.WhenAnyValue with a primitive type, the subscribe method works as expected, notification fire. However if I attempt to us this.WhenAnyValue with a complex type, it doesn’t appear to work.

In the code below, the SelectedElement is a complex type where one of its properties is SourceEventDomainModelModelGuid of type Guid

SelectedSourceProduct is of Type Guid

            // This does not work when binding to a complex type
            this.WhenAnyValue(x => x.SelectedElement)
                .Skip(1)
                .ObserveOn(RxApp.MainThreadScheduler)
                .Select(productModelGuid => productModelGuid.SourceEventDomainModelModelGuid)
                .WhereNotNull()
                .Where(x => x != Guid.Empty)
                .Subscribe(async x => await LoadServices(x),
                    ex => toastNotificationService.AddNotification(
                        new ToastNotificationItem($"Selected Element {ex.Message}", ToastNotificationSeverity.Error)));

            // This works when binding to primitive types.
            this.WhenAnyValue(x => x.SelectedSourceProduct)
                 .Skip(1)
                 .WhereNotNull()
                 .ObserveOn(RxApp.MainThreadScheduler)
                 .Where(x => x != Guid.Empty)
                 .Subscribe(async x => await LoadServices(x),
                     ex => toastNotificationService.AddNotification(
                         new ToastNotificationItem(ex.Message, ToastNotificationSeverity.Error)));

What am I missing? Why can't I get a reaction when a property of the Selected Element changes?