The element info manager. Type:

public &FormStateInterface::getUserInput()

Provides helpers to operate on forms. Hierarchy class \Drupal\Core\Form\

public FormStateDecoratorBase::setLimitValidationErro

public FormStateDecoratorBase::setTemporary(array $te

public FormBuilderInterface::rebuildForm($form_id, FormStateInterface

public FormAjaxResponseBuilder::__construct(MainCon

Provides an interface for processing form submissions. Hierarchy interface \Drupal\Core\Form\

public FormStateDecoratorBase::setSubmitHandlers(array

public FormState::isRedirectDisabled() Determines