validateWithSingleError method

  1. @override
String? validateWithSingleError(
  1. dynamic value
)
override

Validates the given value and returns a single error message if invalid.

Returns null if the value is valid.

This method must be implemented by subclasses to define custom validation logic.

Implementation

@override
String? validateWithSingleError(value) {
  if (!condition) return null;
  return BlocxRequiredValidator().validateWithSingleError(value);
}