I read on How to make a formControl readonly that the best way to obtain a readonly input with Reactive Forms in Angular is to use specificFormControl.disable()
That cause me a problem because I want also to use validator of this input, but .disable() make my input always as VALID
As workaround I use readonly in my .html file. Unfortunatelly, for calendar and radiobutton input it's not working and force me to use the disabled attribute with following warning in console by using reactive forms with disabled attribute.
There's a workaround that fix this?