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

public &FormStateDecoratorBase::getCompleteForm()

public FormStateDecoratorBase::setFormObject(FormInterface

public FormStateDecoratorBase::unsetValue($key)

The config factory. Type:

public FormStateInterface::setCached($cache = TRUE)

public FormStateDecoratorBase::setGroups(array $groups)

public FormStateDecoratorBase::isExecuted()

public FormStateInterface::unsetValue($key)

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