Public Overrides Function IndexOf( _
   ByVal item As Object _
) As Integer

Dim instance As HierarchicalCollectionView
Dim item As Object
Dim value As Integer
 
value = instance.IndexOf(item)

public override int IndexOf( 
   object item
)

public function IndexOf( 
    item: TObject
): Integer; override; 

public override function IndexOf( 
   item : Object
) : int;

public: int IndexOf( 
   Object* item
) override 

public:
int IndexOf( 
   Object^ item
) override