The config factory. Subclasses should use the self::config() method, which may be overridden to address specific needs when loading config,

public static FormStateInterface::hasAnyErrors()

public FormStateInterface::setResponse(Response $response)

public FormStateInterface::isSubmitted()

The HTTP method used by the request building or processing this form. May be any valid HTTP method. Defaults to 'GET', because even though $method

protected SubformState::__construct(array &$subform, array &$parent_form

public FormStateDecoratorBase::loadInclude($module, $type

public FormState::hasFileElement() Returns

public FormStateDecoratorBase::disableRedirect($no_redirect

public FormStateInterface::setCompleteForm(array &$comple