Anything I could find related to this question was for Drupal 7.
I am building a form that needs to perform a certain ajax function when a date is selected. I have built my form to work similarly to the "Form API Examples - Ajax Form Example" part of the Examples module.
To test, I set it up so that, like in the example, when this Select element is changed it triggers the function "dateCallback":
$form['dropdown'] = [ '#title' => $this->t('Test'), '#type' => 'select', '#options' => ['option1' => '1', 'option2' => '2'], '#ajax' => [ 'callback' => '::dateCallback', 'wrapper' => 'log-wrapper', ], ];
This executes perfectly.
However, when I try to set up a Date element to do the same function, nothing happens. No Ajax spinner, just nothing happens at all.
$form['date'] = array( '#type' => 'date', '#title' => t('Date'), '#ajax' => [ 'callback' => '::dateCallback', 'wrapper' => 'log-wrapper', ], );
It does not work even if I include
'event' => 'onchange' in the
Is it possible to make ajax functions trigger on a changed date field?