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Re: More bindings confusion
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Re: More bindings confusion

On Jul 16, 2004, at 12:34 AM, Scott Anguish wrote:
for example, in a basic Cocoa Document application the Main.nib's file owner is the instance of NSApplication. The Document.nib's owner is the NSDocument subclass. There is no reason that you couldn't load a nib and set a bindings
compliant controller (or model object) as the owner (and thus the File's Owner).

So if I bind a view's "enabled" binding to Shared Application using the model key path "delegate.kvcCompliantMethod", and implement kvcCompliantMethod in the NSApplication delegate, it will work, but I lose... what?

Bindings are values, not actions. You can't actually trigger single or double actions on an NSTableView with bindings. You can bind an Action Invocation for Button and NSButtonCell, but not NSTableview selections.

I can see where Action Invocation would be useful for NSTableView though... if you think so, file an enhancement request at bugreporter.apple.com

The fact that it can't be done is exactly my point :). Neither the standard target/action for NSControl nor NSTableView's doubleAction can be accessed with bindings. For that matter, you can't access doubleAction with traditional outlets and connections either; it has to be done from code. This isn't the only missing binding in IB; any NSButton should have an Action Invocation binding, but you can't access it for a checkbox or radio button. The power of bindings is being sabotaged here. I can hope this is fixed in Tiger, but in the meantime I'm going to file a bug.

rdar://3730518

-- Gwynne, key to the Code that runs us all
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Web: http://musicimage.plasticchicken.com/
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References: 
 >More bindings confusion (From: Gwynne <email@hidden>)
 >Re: More bindings confusion (From: Scott Anguish <email@hidden>)



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