Thread

I would like to have a multi select field (e.g. topics) which, if the topic isn’t listed, has an option to add a custom topic, which automatically is populated to the list AND sorted in alphabetical order…. (for the next entry or edit)

How can this be done?

Hi Nutmeg,

I didn’t see any field type for it. May be other have used.

But you can have a simple solution to achieve it.
Just create your custom field with the type of “Multi Select”. I think, you will use inbox for entering new topic (if not listed within multi-select), so you can have an “add” button with this input box.
When user enters topic and clicks “add” button, use ajax to run PHP code which will add this new option with existing options of that field.

It’s fairly easy but will need the some development knowledge of EE.

Best Regards,