Thanks for your help! I am indeed working with Snow Leopard.
Here are my bindings & configuration: — NSTreeController, IB Name "Collections" Mode: Entity Entity Name: Collection Children Key Path: children [a relationship on the Collection managed object] Prepares Content: YES Editable: YES Fetch Predicate: "parent == nil" Selection Index Paths binding: - Bound to: Shared User Defaults Controller - Controller Key: values - ModelKeyPath: collectionSelectionIndexPaths - Raises for Not Applicable Keys: YES — CollectionOutlineController Custom Class for handling drag and drop — NSOutlineView Connected to CollectionOutlineController at: - dataSource - delegate Selection Index Paths binding: - Bound to: Collections (NSTreeController) - Controller Key: selectionIndexPaths - Raises for Not Applicable Keys: YES — NSOutlineView (Table Column) Value binding: - Bound to: Collections - Controller Key: arrangedObjects - Model Key Path: name - Allows Editing Multiple Values Selection: YES - Conditionally Sets Enables: YES - Creates Sort Descriptor: YES - Raises for Not Applicable Keys: YES These are the settings that raise the dataSource error. Thanks again for your help! Peace, Andy On Jan 20, 2010, at 9:49 PM, Scott Anguish wrote: > I’m assuming Snow Leopard > > It sounds like they’re marked as @required in the header, but > > @optional > > /* Required methods > */ > - (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index > ofItem:(id)item; > - (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item; > - (NSInteger)outlineView:(NSOutlineView *)outlineView > numberOfChildrenOfItem:(id)item; > - (id)outlineView:(NSOutlineView *)outlineView > objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item; > > they aren’t. > > Implementing stubs for them won’t help. It sounds like a bindings issue. > > What specifically are your bindings? _______________________________________________ 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 arch...@mail-archive.com
