Was the problem solved? I am having the exact same problem here, the contents of inactive tabs of an NSTabView (using bindings for Selected Index) embedded in an NSCollectionView don't work as expected....
Cheers On Dec 3, 2007, at 2:47 PM, David Carlisle wrote: > I can see that your simple demo example fails to perform as expected. One > thing that confused me initially is that "MyController" isn't a controller, > but just an NSObject that contains the array of NSNumbers. > > You mention the simpler case of dropping a single NSTabView on the window > directly, which works as expected. It would be interesting to know if you > are then binding that NSTabView to a single NSNumber in MyController, > similar to the way you are binding the first case. If the simpler case > works, it would then be interesting to subclass NSNumber to increment its > value by 10 every time its value is accessed, so you can tell if the > NSTabView causes the NSTextField to update its value each time the tab is > clicked and the field becomes visible. > > If it does update each time, then it would appear that in the original > NSCollectionView case the NSTextFields that were not initially visible were > not bound in a way that would allow them to update their value when the > NSTabView was changed. > > If it does not update each time, then it would appear that NSTabView was > programmed to assume its subfields did not need updating when they become > visible, while NSCollectionView was programmed to assume that only the > visible fields needed initial values. > > That's just my guess as to what I think is happening. > > > > On Nov 29, 2007, at 10:08 PM, Joshua Emmons wrote: > > > I have the following very simple setup (project can be found at > http://www.skia.net/media/tabbinding.zip) : > > o MyController has but one ivar: NSArray *myNumbers > o myNumbers is assigned an array of NSNumbers (0,1,2,0,1,2...) in - > wakeFromNib > o The app's nib instantiates MyController > o The app's window is completely filled with an NSCollectionView whose > content property is bound to MyController.myNumbers > o NSCollectionView's NSCollectionViewItem's "view" outlet is connected to > an NSTabView > o The NSTabView has three tabs. Its SelectedIndex property is bound to the > representedObject of the NSCollectionViewItem > o Finally, each tab has a label in it. This label's value property is ALSO > bound to the representedObject of the NSCollectionViewItem. > > Here's what it looks like when run: http://www.skia.net/media/tabbinding.png > > > Note that NSTabView's binding of SelectedIndex works just fine. First the > 0 index tab is selected, then the 1, then the 2, etc. etc. The trouble is > the label. > > Each tab should display the index number it is bound to in its label. In > the picture above, only the first tab (index 0) is actually able to find the > value it's bound to. The reason? That's the tab selected in IB!! If I select > the second tab (index 1) in IB, I get the following: > http://www.skia.net/media/tabbinding2.png > > For some reason, bindings of controls in the initial tab (the one selected > in IB) work fine, but all the rest are dead. This only happens within an > NSCollectionView. If drop my NSTabView on the window directly, all the > bindings in all the tabs work. > > Anybody know what NSCollectionView is doing with its NSCollectionViewItem > behind the scenes that messes tab views up? I'm dumbfounded! > > Many thanks, > -Joshua Emmons > > > > _______________________________________________ > > > Cocoa-dev mailing list ([EMAIL PROTECTED]) > > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/[EMAIL PROTECTED] > > > This email sent to [EMAIL PROTECTED] > > > _______________________________________________ > > > Cocoa-dev mailing list ([EMAIL PROTECTED]) > > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/[EMAIL PROTECTED] > > > This email sent to [EMAIL PROTECTED] -- Emilien HUET Etudiant en 2ème année du Cycle Ingénieur à l'Ecole Centrale d'Electronique (Paris) - www.ece.fr Vice-Président de l'iTeam - www.iteam.org _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
