I have an NSComboBox bound to the selection of an NSArrayController. The bound object is an NSDictionary. I use an NSValueTransfomer to represent the NSDictionary. The ValueTransformer gives me the dictionary's summary property which is useful for people choosing the appropriate NSDictionary from the array. I have set up the NSComboBox to use a datasource for custom autocompletion. I need case insensitive autocompletion which does not come straight of the box. Whenever I star typing in my NSComboBox, I get an -[NSDictionary length] exception. The NSComboxCell is trying to complete by sending a length request to the bound object, not through the transformer. Is there a way around this? The calling method before the exception is [NSComboBoxCell _completeNoRecursion]. Thanks,
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