Hi, I’m trying to clear all the Items from a Tree View apart from the Root Item.
When my View gets initialized, it creates a Section called: “OBJECTS”, this is the Item that has the Show/Hide in Title. Then when I get a Notification, I add items to the Tree Controller, this works fine. The “OBJECTS” Section, has an Index Path of: Index=0 Length=1. The first Item I add (“Object-A:) to the “OBJECTS” section, is a Top Level container for a Hierarchy of Objects (hence using a Tree Controller to display it), this has an Index Path of Index:0.0 Length=2. It then adds all the child objects inside it, Index Paths, 0.0.0, 0.0.1, 0.0.2, etc. There may be more than one object in the “OBJECTS" section, e.g. Object-B has Index Path 0.1. I get small changes to the Hierarchy from time to time and also updates to the Data in the Leaf Nodes. This all work wonderfully. There are two notifications that I have yet to handle: “Clear All” and “Replace”. In order to handle these I need to clear all the Items from the “Objects” section. I tried doing this: myIndexPath = [self newIndexPathWithObjectIndex:0]; [self.pTreeController removeObjectAtArrangedObjectIndexPath: myIndexPath]; myIndexPath is set to 0.0, length 2. But this removes the “OBJECTS” section too (at Index Path 0 Length 1). If I don’t clear the Section, then I end up for duplicates. So, finally, my question is how do I remove everything inside the “OBJECTS” Section? Thanks a lot for any help. Cheers Dave _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
