function ajax_example_dependent_dropdown_callback in Examples for Developers 7

Selects just the second dropdown to be returned for re-rendering.

Since the controlling logic for populating the form is in the form builder function, all we do here is select the element and return it to be updated.

Return value

array Renderable array (the second dropdown)

Related topics

1 string reference to 'ajax_example_dependent_dropdown_callback'

ajax_example_dependent_dropdown in ajax_example/ajax_example.module

AJAX-based dropdown example form.

File

ajax_example/ajax_example.module, line 614

AJAX Examples module file with basic examples.

Code

function ajax_example_dependent_dropdown_callback($form, $form_state) {
  return $form['dropdown_second'];
}