getError method
Retrieves the validation result for a specific form field.
This method returns the current validation state for the specified form key, which can be either a synchronous ValidationResult or a Future for asynchronous validation. Returns null if no validation result exists for the key.
Parameters:
key(FormKey): The form key to get validation result for
Returns the validation result or null if none exists.
Implementation
FutureOr<ValidationResult?>? getError(FormKey key) {
return _validity[key]?.result;
}