BloweRadiusFormValidator<T> typedef
BloweRadiusFormValidator<T> =
String? Function(BuildContext context, T? value)
Typedef for a validator function used by BloweRadiusForm.
context
: The BuildContext of the widget.value
: The current value of the radius form.
Implementation
typedef BloweRadiusFormValidator<T> = String? Function(
BuildContext context,
T? value,
);