Returns a Boolean value that indicates whether the outline view should collapse a given item.
Original signature is '- (BOOL)outlineView:(NSOutlineView *)outlineView shouldCollapseItem:(id)item'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |
public bool OutlineViewShouldCollapseItemMessage( NSOutlineView outlineView, Id item )
Public Function OutlineViewShouldCollapseItemMessage ( _ outlineView As NSOutlineView, _ item As Id _ ) As Boolean
public: bool OutlineViewShouldCollapseItemMessage( NSOutlineView^ outlineView, Id^ item )

- outlineView (NSOutlineView)
- The outline view that sent the message.
- item (Id)
- The item that should collapse.

YES to permit outlineView to collapse item, NO to deny permission.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)