Determine checkbox group by defaultValues when using useController

[giovannipiller]

On version 7.30.0 it has been added support for determining checkbox group based on the defaultValues (#7938).

This however seems to be limited fields created via register(...) -> https://codesandbox.io/s/rhf-register-oef6f9-oef6f9

There are two more scenarios that would be nice to cover:

1. Setting up the field defaultValue via useController:

  const myField = useController({
    control,
    name: "firstName",
    defaultValue: []
  });

2. using useController rather than register to setup the field:

  const { handleSubmit, control } = useForm<FormValues>({
    defaultValues: { firstName: [] }
  });

  const myField = useController({
    control,
    name: "firstName",
  });

Any thoughts?

[bluebill1049]

hey, @giovannipiller for the controlled components you could host your own local state, Controller or useController just a headless component or hook to collect and validate data. The same reason some of the additional props is not migrate to controlled, because when you build a controlled component, you are having the control already.

[giovannipiller]

Ok, thanks for the reply!