.. include:: /Includes.rst.txt .. index:: Events; BeforeFlexFormConfigurationOverrideEvent .. _BeforeFlexFormConfigurationOverrideEvent: ======================================== BeforeFlexFormConfigurationOverrideEvent ======================================== .. versionadded:: 12.3 The PSR-14 event :php:`\TYPO3\CMS\Extbase\Event\Configuration\BeforeFlexFormConfigurationOverrideEvent` can be used to implement a custom :ref:`FlexForm ` override process based on the original FlexForm configuration and the framework configuration. Example ======= .. literalinclude:: _BeforeFlexFormConfigurationOverrideEvent/_MyEventListener.php :language: php :caption: EXT:my_extension/Classes/Extbase/EventListener/MyEventListener.php .. include:: /_includes/EventsAttributeAdded.rst.txt API === .. include:: /CodeSnippets/Events/Extbase/BeforeFlexFormConfigurationOverrideEvent.rst.txt