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Form Submit onChange without submit Button


3 Posts   476 Views


6 October 2013 at 12:02am Community Member, 126 Posts


I have written a simple Dropdown Form with Submit Button, to change/select the page language.

Here is the code:


* To change this template, choose Tools | Templates
* and open the template in the editor.
class BootstrapNavbarLanguageForm extends Form {

public function __construct($controller, $name, $fields = null, $actions = null) {

$Laguages = array();

foreach(LocaleGeoip::get_available_languages() as $Locale => $Language){
$Languages[$Locale] = _t('BootstrapNavbarLanguageForm.'.$Language, $Language);

// Create fields
$fields = new FieldList(
$locale = new DropdownField('Locale', "", $Languages, i18n::get_locale())
// Create actions
$actions = new FieldList(
$submit = new FormAction('updateLang', _t('BootstrapNavbarLanguageForm.SUBMIT','BootstrapNavbarLanguageForm.SUBMIT'))


public function updateLang(array $data){

if($o_Member = Member::currentUser()) {

$o_Member->Locale = $data['Locale'];



Session::set('Locale', $data['Locale']);


Now I want this form to be used without the submit button. It just should submit on changing the dropdown. I know, I can work here with jQuery and that is not the problem.

But how to I create the code and the submit actions, without adding a(visible) submit button?

I can try to add an empty $action. But how do I tell the form, to use the updateLang method, when being submitted?


10 October 2013 at 1:49am Community Member, 126 Posts

Anyone with an idea here?


10 October 2013 at 2:26am Forum Moderator, 1095 Posts

Why not make the action (button) invisible using css?