...is not working because AllowedValues is REST and not RESTful?
...No event is fired.
Are there any plans to add REST as a service mode?
Did you ever get this to work with the swisstopo swissimage wmts layer?
j.eyreesri-ch-esridist - this 2013 thread is about the since retired ArcGIS API for Flex. Are you asking about the Flex API, or maybe ArcGIS API for JavaScript?