Hi Tony > Based on a user preference, I want to be able to selectively show/not show > items contained in the tree controller by an outline view. For example, > suppose the tree controller has these items: A,B,C,D,D,E,F,G,H. The outline > view will normally display all of the items. Now suppose the user sets a > preferences that he/she doesn't want to show item(s) 'D'. The outline view > should now display: A,B,C,E,F,G,H. > > One obvious method(albeit brute force) is to rebuild the tree controller list > and redisplay it. For what I want to do, this is way too expensive of an > operation. In addition, the user can toggle back and forth the preference. > There doesn't seem to be an obvious way to tell the outline controller, "skip > or hide this item".
One obvious way is, not to work with the tree controller but, to work with the tree itself. If the data is retrieved from a Core Data store, you can mark each item with a "Valid" property and use a predicate on the fetch. Joanna -- Joanna Carter Carter Consulting _______________________________________________ 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/archive%40mail-archive.com This email sent to [email protected]
