Re: NSArrays and NSArrayControllers

FROM : mmalc crawford
DATE : Fri Jan 11 21:14:52 2008

On Jan 11, 2008, at 11:51 AM, Francisco Tolmasky wrote:

> I have a container view which contains a number of inner views. 
> These inner views represent an
> equal number of model objects in an array which is bound to my 
> container view through an NSArrayController.
> I'm a little new to this, so I was wondering if there was an 
> efficient way for a new inner view to be created
> when an object is added to the array, and of course for one to be 
> delete when an object is removed from
> the array.  To my understanding, the only message I will get is that 
> the array *changed*, and I will thus be forced
> to completely re-set up my views every time the array changes.  Is 
> this correct?  Or is there some sort of
> - (void)controllerDidAddObjects:toIndexes: ?  Or perhaps I'm 
> completely thinking about this in the wrong way.
>

You can always ask the object to which you're bound how many things 
you have -- see Graphics Bindings.
See also NSCollectionView.

mmalc