ajax_example_dependent_dropdown_callback

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

renderable array (the second dropdown)

Related topics

Example: AJAX

These examples show basic AJAX concepts.

1 string reference to 'ajax_example_dependent_dropdown_callback'

File

ajax_example/ajax_example.module, line 509

AJAX Examples module file with basic examples.

Code

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