[Issue #9631] fix radiobutton to support model-driven form with formControl

[lisuizhe]

###Defect Fixes
Fixed: Radio buttons do not get unselected on the same group, with Reactive Forms using formControl instread of formControlName #9631

[sergeypayu]

I wonder why the b823983 commit was needed. Angular uses internal registry for all radio buttons without separating model-driven from template-driven approaches. I don't see any downsides of always using the registry.

Also it's kinda sad that it took 5 weeks to merge my fix and in the end radio buttons are still broken because of the applied "refactoring".

[loxy]

This is not really working for me (using Formly), because this.formControl is also undefined. It should be something like this:

ngOnInit() {
    const control = this.injector.get(NgControl);
    if (control) {
        this.control = control;
        this.checkName();
        this.registry.add(this.control, this);
    }
}
...
select(event) {
    if (!this.disabled) {
        this.inputViewChild.nativeElement.checked = true;
        this.checked = true;
        this.onModelChange(this.value);
        if (this.control) {
            this.registry.select(this);
        }
        this.onClick.emit(event);
    }
}

[yigitfindikli]

Hi @lisuizhe,

Thank you for your work. But will be added manually.

Best Regards.

[lisuizhe]

@yigitfindikli Thanks! Appreciate your effort to fix this issue!