Hello! :-)
What ist the best way to get the selected value of an OptionsetField in the function of an action?

         function switchLanguageForm() {
		$fields = new FieldSet(new OptionsetField($name="chooseLang", 
                                                                                    $title="Sprache wählen", 
                                                                                    $source = array('de_DE' => 'Deutsch', 'en_GB' => 'English')));	
		$actions = new FieldSet(new FormAction('doSwitchLanguage', 'Sprache wechseln'));
		return new Form($this, 'switchLanguageForm', $fields, $actions);
	}

         function doSwitchLanguage($data, $form) {
           //Here i want to know which language was selected
           //How can this be done?     
         }

I searched for a solution in the documentation, but found nothing. Did i miss something?

Thanks Patrick

function doSwitchLanguage($data, $form) { 
	$lang = $data["chooseLang"]; // de_DE, en_GB etc...
	... rest of code
}