CiviCRM Community Forums (archive)

I haven't seen this problem/situation covered here yet.

How can/should I link input fields where options are contingent on a prior choice?

For example, in a game tournament event an applicant can come in as unaffiliated, in which case the user is assigned to a team by the organizers off-line, or as already a member, in which case a text widget is presented for the user to enter the team name.

Is this available or does it need to be cooked up ad hoc?  I think I can envision how to do it with hooks, but am not sure how that would be set up on the event registration form configurator.  Do I set up all the fields in the event form and then manage contingent linkages with hook jiggery-pokery behind the scenes, or is there a better way? 

I'd love to see a snippet if there's something close to this somewhere.

if you do this, please publish your snippet so other folks can benefit and make use of your work

we use the chainedSelect jquery code for the state/country widget and it works quite nicely

lobo