I'm trying to make a button be disabled if an array controller is being
filtered. So in IB I bound the enabled state of the button to the array
controller, with controller key "filterPredicate" and value transformer
"NSIsNilTransformerName". At run time, an exception is thrown, and the
log has a message "Cannot find value transformer with name
NSIsNilTransformerName". That really confuses me, because the docs say
that NSIsNilTransformerName is one of the built-in value transformers.
Clue, please?
--
James W. Walker, Innoventive Software LLC
<http://www.frameforge3d.com/>
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