Hi Markus,
I'm guessing that your NSArrayController is in the nib itself. One
thing you could do is instantiate it programmatically and set it as an
ivar of some other controller class in the nib (lets call it
MyWindowController). Then bind the views to the
MyWindowController.arrayController.arrangedObjects (or whatever the
applicable keypath is).
When your view is hidden, you can set
MyWindowContoller.arrayController to nil and it *should* just work.
We've used this same pattern in our code, but we're only using the
arrangeObjects and selectedObjects keypaths of NSArrayController.
Also, I haven't played with NSCollectionView, but it seems odd that it
has problems if the data changes when its not visible. It sounds like
a bug to me...
- Andy
On Jun 15, 2008, at 3:39 AM, Markus Spoettl wrote:
Hi List,
I have a document window that can show the same data in more than
one way, very much like Finder, one view mode is an outline, the
other is a collection. Both are bound to the same data, so they
reflect changes automatically.
I was wondering if there is some way to tell a controller class
(like NSArrayController) to temporarily disconnect the bound view
from the data (other than removing the binding itself). It seems
that the views are updating the data even if they are not visible,
consuming memory and processor time. Moreover, NSCollectionView does
seem to have problems when it's not visible and the data changes (I
get debug log entries about assertion failures in NSView lockFocus).
Thanks
Markus
--
__________________________________________
Markus Spoettl
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