BRIEF:
Backbone Forms framework achieved that subviews are totally unbind and don't know about each other at all. So the question appears - how to pass the event between different subviews?
IN OTHER WORDS:
Suppose I have parent form object which extends Backbone.Form and contains a lot of fields. Have can I pass event from this parent for specific field (subview) of the form?
You can communicate directly from form to field by doing:
Here's another example for communicating between two different fields using events. In this case, changing the options in the city based on the value selected in the country .
http://jsfiddle.net/evilcelery/c5QHr/