FormConfigBuilderInterface

bool getDisabled() Returns whether the button is disabled.

FormErrorIterator getErrors(bool $deep = false

FormInterface[] all()

preSubmit(FormEvent $event)

array getExtraData() Returns the extra data.

FormInterface add(

unserialize(string $serialized) Unserializes a serialized error.

int count() Implements \Countable. Return

bool getCompound() Unsupported method.