Set checkbox choices in runtime

[Mani]

Hi Alex - I have a situation where the radio button determines the number of choices displayed in a checkbox.

Sample form - https://demo.orbeon.com/demo/fr/test/checkbox/new

I'm using two checkbox controls to do this. Can we do the same with only one checkbox control and without using single checkbox controls or setting the values through service and action?

Thanks

Manish

[Mani]

Hi Alex - Have you had a chance to look at this?

[Alessandro Vernet]

Hi Manish,

I'm sorry for the delay! You could certainly have an action that, upon the
value of the radio button changing, calls a service that return the list of
choices you need to have in the checkboxes. Or were you maybe looking for
something different?

‑Alex

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[Mani]

They are a set of static values and some of the values should be displayed/hidden based on the radio button. Is this possible without calling a service?

[Alessandro Vernet]

Hi Manish,

It isn't. Right now actions always call services. (And I understand in this
case this seems wasteful since you could hardcode the choices in the form.)
One trick we use sometimes is to have a service that always returns the same
thing, posting to an local built-in "echo" service, and have the filtering
done in the Choices XPath expression. See:

Using_an_echo_service.gif
<http://discuss.orbeon.com/file/t119778/Using_an_echo_service.gif>

Also, here the source of the form: form.xml
<http://discuss.orbeon.com/file/t119778/form.xml>

You'll let me know if this works for your case.

[Alessandro Vernet]

Hi Manish,

Did you get a chance to try using a static service, and doing the filtering
in the Choices XPath expression? If so, did that work for you?