Builds an AJAX form response. Given the current request, a form render array, its form state, and any AJAX commands to apply to the form, build

public FormState::setBuildInfo(array $build_info) Sets

Provides an interface for an object containing the current state of a form. This is passed to all form related code so that the caller can use

public FormBuilderInterface::buildForm($form_id, FormStateInterface

public FormValidatorInterface::executeValidateHandlers(&$form

public ConfirmFormInterface::getConfirmText()

The form state. Type:

public EnforcedResponseException::__construct(Response

public FormState::getLimitValidationErrors() Retrieves

public FormBuilderInterface::rebuildForm($form_id, FormStateInterface