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Re: Custom Bindings clarification

On Jan 27, 2004, at 8:36 AM, mmalcolm crawford wrote:

If you just want to establish a binding, you can do it programatically:
[textField bind: @"backgroundColor" toObject: $sourceObject
withKeyPath: $backgroundTextColorKey options:nil];

In the case of a colour binding, "of course", you'll also have to specify at least one binding option -- to use NSUnarchiveFromData (since you can't store colours directly in Preferences).

You might therefore end up with code that looks something like this:

NSMutableDictionary *bindingOptions = [NSMutableDictionary dictionary];

[bindingOptions setObject:NSUnarchiveFromDataTransformerName forKey:@"NSValueTransformerName"];
// other options

[textField bind: @"backgroundColor"
toObject: [NSUserDefaultsController sharedUserDefaultsController]
withKeyPath:@"values.backgroundTextColor"
options:bindingOptions];


I've put a complete example at:
<http://homepage.mac.com/mmalc/CocoaExamples/ ManualBindingsColourPreference.zip>

mmalc
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References: 
 >Custom Bindings clarification (From: Peer Allan <email@hidden>)
 >Re: Custom Bindings clarification (From: mmalcolm crawford <email@hidden>)



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