Re: textShouldNotEvenThinkAboutEndEditingIfItKnowsWhatIsGoodForIt

FROM : Scott Stevenson
DATE : Thu Dec 02 21:18:25 2004

On Dec 2, 2004, at 8:00 AM, Graham J Lee wrote:

> However I've noticed that if a user enters an out-of-range number and 
> then, rather than hitting return or tab, just presses e.g. a button, 
> then the method invoked by that button does run and does see the 
> current intValue of the field and hence crashes and burns.  Now I've 
> just noticed the existence of NSStepper, but before I [i]dig into that 
> [ii]change my UI as a result, is there a way of making sure that the 
> NSTextField's content is *definitely* validated before it is used?


Key-value validation?

http://developer.apple.com/documentation/Cocoa/Conceptual/
KeyValueCoding/Concepts/Validation.html

Works well with bindings.


    - Scott


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