Returns an index set containing the indexes of the receiver’s currently selected objects in the content array.
Original signature is '- (NSIndexSet *)selectionIndexes'
Available in Mac OS X v10.3 and later.

C# | Visual Basic | Visual C++ |
public virtual NSIndexSet SelectionIndexes { get; }
Public Overridable ReadOnly Property SelectionIndexes As NSIndexSet Get
public: virtual property NSIndexSet^ SelectionIndexes { NSIndexSet^ get (); }

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