Expose form validity

I have a button to save the form outside the form component, I want to enable it only when the form is valid. This is easy if you have a reference to the formgroup: [disabled]="!form.valid"

If you’d expose this property of the form with a getter I can get this functionality back.

public get valid(): boolean {
	return this.formGroup.valid;
}

[zakhenry]

@maxime1992 yes I think this is an unusual enough case (save from outside the root form) to not warrant adding a bunch of extra boilerplate to the library as this could easily be implemented by users by creating their own

abstract class MyRootFormComponent<T> extends NgxRootFormComponent<T> {
  // implement utility getters here
}

[AlexAegis]

Also, I found a bigger issue. But this can be solved by just updating your readme. You’re using the ngOnInit hook in the parent class. If I too want to use it then that will overwrite yours. In this case I have to call super.ngOnInit() explicitly to make it work. Please emphasize this in the README.

	public ngOnInit(): void {
		super.ngOnInit();
	}

I dug a little deeper and I see you use the OnDestroy hook too. Mention that too please.