Re: Forcing a refresh on a bound control

FROM : Hamish Allan
DATE : Tue May 20 21:12:31 2008

On Tue, May 20, 2008 at 12:43 AM, Christiaan Hofman <<email_removed>> wrote:

> The problem is that at some point the dependent key depends on a key for
> /another/;object. And this can not give automatic KVO notifications for the
> dependent key (using Tiger API), unless you actually use a KVC compliant
> setter for the dependent property.


Ah, yes, sorry, I didn't read the thread back far enough. And I should
have known better, seeing as I asked about this myself in 2005:

http://www.cocoabuilder.com/archive/message/cocoa/2005/12/23/153070

I got the highly useful answer "that's just how it works". So I asked
again earlier this year:

http://www.cocoabuilder.com/archive/message/cocoa/2008/4/17/204429

The particular reason for my re-asking was that I had discovered that
NSArrayController doesn't bother to populate its before/after values
properly. Given this glaring bug, and Keary's pertinent question: "why
are NSController and its subclasses (because this problem, IIRC,
effects all NSController classes) broken by design, and not fixed even
after two full OS releases?", although I hesitate to recommend it, I
just can't believe that the will/did hack will break anything, despite
mmalc's protestations.

Hamish