Public Default Property Item( _
   ByVal index As Integer _
) As Annotation

Dim instance As AnnotationCollection
Dim index As Integer
Dim value As Annotation
 
instance.Item(index) = value
 
value = instance.Item(index)

public Annotation this[ 
   int index
]; {get; set;}

public:
property Annotation^ default [int] {
   Annotation^ get(int index);
   void set (int index, Annotation^ value);
}