Bindings, Popup, NSValueTransformer

FROM : Jaime Magiera
DATE : Tue Jan 15 22:57:20 2008

Hello,

I tried to search the archives. However, the two people who asked the 
same question got no response. It must be something simple.

I have an NSArrayController bound to an NSArray of NSNumbers. There is 
an NSPopupButton bound to the NSArrayController. The values display 
properly in the popup. However, the NSValueTransformer doesn't seem to 
be called on the objects (oddly, the reverse transformation is called 
on the selection).

Is there a trick to getting this situation to work? It's probably 
something simple, but I just don't see it.

NSArray of NSNumbers -> NSArrayController -> NSPopupButton -> 
contentObjects, contentValues (with transformer)

thanks,

Jaime Magiera

Sensory Research
http://www.sensoryresearch.net