Angular 22: Mix Signal Forms and Reactive Forms Seamlessly

What if you could start using Signal Forms today without touching your existing Reactive or Template-driven forms at all? In Angular 22, you'll be able to build Signal-based custom form controls that drop right into your existing forms with no massive rewrites required. This post walks through how to migrate a custom control from ControlValueAccessor to FormValueControl while keeping the parent form completely intact. Reactive Forms Setup with a Custom Control Here, we have a simple cart form with a quantity control, a coupon code, an email field, and a gift wrap checkbox. This form is currently built using standard Reactive Forms. The quantity control is actually a custom form control built using ControlValueAccessor. If we click the plus and minus buttons, the value of our form updates correctly: And if we go under 1 item, it triggers our validation and we see the error message appear: Everything works, but the underlying ControlValueAccessor implementation is incredibly verbose. Let