why I cannot found ObservableValidatorAttribute ，but can found ObservableRecipientAttribute and ObservableObjectAttribute？

[idea-zone]

[michael-hawker]

The Validator is much more complex than the others, so I think that's the reason. The attributes are a last resort, ideally you should be directly inheriting from the base classes.

[Sergio0694]

Yeah this is intentional, we can't generate the code for that, it requires quite a lot of stuff. You should derive from it 🙂