Hi List,I have an NSOutlineView based source list bound to a tree controller and I can't figure out how to create a group item that does not have a disclosure triangle - as an example, the MAILBOXES folder group in Mail.app does that.
I thought it might be possible by returning NO for the - shouldCollapseItem: and -shouldExpandItem: delegate methods for the group item in question but that doesn't do have that effect. It makes the item non-expandable/non-collapsable but it still shows its disclosure triangle. I also set the datasource (the outline is bound) and implemented the datasource method
- (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable: (id)item
but that never gets called.Any ideas on how to make the disclosure triangle disappear for a specific item? Is this only possible in data source driven outline views?
Regards Markus -- __________________________________________ Markus Spoettl
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