Returns a whether the specified item should display the outline cell (the disclosure triangle).
Original signature is '- (BOOL)outlineView:(NSOutlineView *)outlineView shouldShowOutlineCellForItem:(id)item'
Available in Mac OS X v10.6 and later.

C# | Visual Basic | Visual C++ |
bool OutlineViewShouldShowOutlineCellForItem( NSOutlineView outlineView, Id item )
Function OutlineViewShouldShowOutlineCellForItem ( _ outlineView As NSOutlineView, _ item As Id _ ) As Boolean
bool OutlineViewShouldShowOutlineCellForItem( NSOutlineView^ outlineView, Id^ item )

- outlineView (NSOutlineView)
- The outline view that sent the message.
- item (Id)
- An item in the outline view.

YES if the outline cell should be displayed, otherwise NO.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later)