Chained Select

Chained Select adds a form field made of linked drop-down lists, with up to 3 levels. What can be picked in each list depends on the choice before it. For example: choose a country, then only that country's states are listed, then only that state's cities.

ACP > Modules > Forms > Chained Select

The choices are kept in an option set.

To build one by hand: on the Manage Sets tab, enter a New Set Name. Then add the options for each level. Each option has a Key (optional; the value is used if empty) and a Value. On levels 2 and 3, you also set the Select Option Field Title shown next to the list.

To import one: use Tools > Import a Set and upload a CSV file. Each line is one path through the lists:

"England","Bedfordshire"
"England","Berkshire"
"Scotland","Aberdeenshire"

There is also a Library CSV File list of ready-made sets:

• cities by state for the US, Australia and New Zealand, and South America
• cities by country for the European Union
• UK counties

Importing into an existing set name adds the new entries to it.

1. Open the form in the Form Designer and create a field.
2. Set its Type to chained_select.
3. Set Options to the name of your option set.

The form now shows the linked lists.