What I want to accomplish seems like it should be fairly straightforward. I
have placed a sample project at
https://github.com/ericgorr/arraycontrollerbindings.
I have a NSArrayController filled with an array of NSDictionaries.
[[self controller] addObject:@{ @"name" : @"itemA", @"part" : @"partA" }];
[[self controller] addObject:@{ @"name" : @"itemB", @"part" : @"partB" }];
[[self controller] addObject:@{ @"name" : @"itemC", @"part" : @"partC" }];
I am populating a NSPopupButton with the items in this array based on the
'name' key. This is easily accomplished with the following bindings.
Content Array binding -
bound to: Array Controller
controller key: arrangedObjects
Content Values binding
bound to: array controller
controller key: arrangedObjects
model key path: name
I would then like to populate a NSTextField with the text in the 'part' key
based on the current selection of the NSPopupButton. I have setup the following
binding:
Value binding
bound to: array controller
controller key: selection
model key path: part
With these bindings alone, the text field does display 'partC'.
However, if I change the value of the NSPopupMenu, what the text field shows
does not change.
I thought this would simply be a matter of setting up the 'Selected Object'
binding on the NSPopupButton with the controller key 'selection', but that
isn't working. I end up with the proxy object in my menu for some strange
reason (providing the reason why would be a bonus).
What am I missing to make this work?
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