MVVM Messenger Register for any changed event

[XySoftNeil]

Is there a way to register to get any changed event, not by type? I'm trying to implement a relay command that calls NotifyCanExecuteChanged when one of the dependent properties changes.

Messenger.Register<AutoRelayCommand, PropertyChangedMessage>(this, static (r, m) =>
{
if (r.properties != null && r.properties.Contains(m.PropertyName))
r.NotifyCanExecuteChanged();
});

Thanks,

Neil

[sharpninja]

You can extend the RelayCommand<> such that the generic for the CommandArgument must implement INotifyPropertyChanged or ICollectionChanged, then handle the events internally and raise the NotifyCanExecuteChanged as necessary.