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Re: A Binding Question

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Re: A Binding Question

Subject: Re: A Binding Question
From: Scott Anguish <email@hidden>
Date: Sat, 2 Jul 2005 03:11:54 -0400

Gah, I messed up

bind the enabled binding to the array controller's selectedObjects with the keypath @count

write a quickie value transformer that checks if the incoming value is 1, if it is return YES, otherwise NO

http://homepage.mac.com/ValueTransformers/TrueIfOneValueTransformer.zip

You'll need to register that VT in your application first.. the doc covers that though)

(You could actually adapt it by adding an initWithNumber: method to be more generic. then you'd init and register it with a specific name)

On Jul 2, 2005, at 2:08 AM, Scott Anguish wrote:

sure...
bind the enabled binding to the array controller's arrangedObjects with the keypath @count
with a count of 0 it is disabled, anything else is true
On Jul 2, 2005, at 1:40 AM, Tony S. Wu wrote:
i bind a NSButton's "enabled" to a NSArrayController. but i want the NSButton to be enabled only when NSArrayController has "one" object selected. is this possible? thanks.
Tony S. Wu
email@hidden

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References:  
  >A Binding Question (From: "Tony S. Wu" <email@hidden>)
  >Re: A Binding Question (From: Scott Anguish <email@hidden>)




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