I have a content type with a paragraph that has two fields, each field inside its own tab controlled by the form display like so:

showing tabbed form display

Here is what the set of tabbed fields looks like when editing a piece of content of the content type:

single tab display on content edit

multi tab display on content edit

The paragraph also has a bool field called field_active_callout_tab with two values: 'Single' and 'Multi', same as the tabs.

If the 'Single' tab is clicked, I want the bool to be checked. If the 'Multi' tab is selected, I want the bool to be unchecked.

I tried to use the Conditional Fields module, but it will not allow control by tab label. How can I establish this dependency between the tab and the bool?

1 Answer 1


You can do it with jQuery, something like this should do it:

$('.single-class').click(function () {
    $('.bool-class').prop('checked', true);
$('.multi-class').click(function () {
  $('.bool-class').prop('checked', false);
  • thanks for that! Can you please explain where this jquery should go? Do I need to put it in a js file and then reference it from the paragraph template, or can I add it directly into the paragraph twig template? Further, are these classes assumed to be added on the fields / tab labels directly in manage form display?
    – lane
    Apr 19, 2018 at 18:06
  • You must define a library in your module, it is explained how to do it here drupal.org/docs/8/creating-custom-modules/…. The class names you find by inspecting the element in the browser, for further information on how to do that look here lifewire.com/get-inspect-element-tool-for-browser-756549
    – user72672
    Apr 19, 2018 at 20:34
  • I'm not using a module to control the banner, just a twig template. Do you think I should add a custom JavaScript file to the theme and reference it from within the twig file?
    – lane
    Apr 20, 2018 at 0:00
  • Yes you shall add it to the theme, it is actually the same procedure look here, drupal.org/docs/8/theming-drupal-8/…
    – user72672
    Apr 20, 2018 at 2:02

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