Nested custom field options?


Well-known member
Would it be possible to add nested drop-down lists as custom user-fields during registration?

I.e. A user will pick their country of residence from a drop-down, and in the second drop-down for state, they'd then only see the applicable states for that country.


Combo-Box 1 - Country:

Combo-Box 2 - State:
US - Alabama
US - California
UK - Scotland
UK - Wales

Selecting US in combo-box 1 would only display Alabama and California in combo-box 2.

I've been looking at the custom-fields part of the admin panel, and have not seen it can be done in there. Would this require an add-on?

Jake Bunce

XenForo moderator
Staff member
This really requires javascript to do it well and have that kind of interaction between the two fields. Of course you can also just display all countries / states in one long list. That would be easier, but less interactive.