ResizeFormListener

class ResizeFormListener implements EventSubscriberInterface

Resize a collection form element based on the data sent from the client.

	__construct($type, array $options = array(), $allowAdd = false, $allowDelete = false, $deleteEmpty = false)
static array	getSubscribedEvents() Returns an array of event names this subscriber wants to listen to.
	preSetData(FormEvent $event)
	preSubmit(FormEvent $event)
	onSubmit(FormEvent $event)

Returns an array of event names this subscriber wants to listen to.

The array keys are event names and the value can be:

The method name to call (priority defaults to 0)
An array composed of the method name to call and the priority
An array of arrays composed of the method names to call and respective priorities, or 0 if unset

For instance:

array('eventName' => 'methodName')
array('eventName' => array('methodName', $priority))
array('eventName' => array(array('methodName1', $priority), array('methodName2')))