Apply conditional logic on checkbox in multi checkbox element.

Webform 8.x-5.x (for Drupal 8) is no longer supported.

Below is an example of attempting to get a condition working when any checkbox is selected. It does not work as expected. This feature is not supported and should be handled using custom code.

checkboxes:
  '#type': checkboxes
  '#title': checkboxes
  '#options':
    one: one
    two: two
    three: three
one:
  '#type': markup
  '#states':
    visible:
      ':input[name="checkboxes[one]"]':
        checked: true
  '#markup': '<p>One</p>'
two:
  '#type': markup
  '#states':
    visible:
      ':input[name="checkboxes[two]"]':
        checked: true
  '#markup': '<p>Two</p>'
three:
  '#type': markup
  '#states':
    visible:
      ':input[name="checkboxes[three]"]':
        checked: true
  '#markup': '<p>three</p>'
any:
  '#type': markup
  '#states':
    visible:
      ':input[name^="checkboxes"]':
        checked: true
  '#markup': '<p>Any</p>'

Hi,
I've also found this problem in webform conditional.
Is this still not supported ?