<DescriptionAttribute("Annotation collection indexer. The annotation name or index can be provided as a parameter.")>
Public Default Property Item( _
   ByVal parameter As Object _
) As Annotation

Dim instance As AnnotationCollection
Dim parameter As Object
Dim value As Annotation
 
instance.Item(parameter) = value
 
value = instance.Item(parameter)

[DescriptionAttribute("Annotation collection indexer. The annotation name or index can be provided as a parameter.")]
public Annotation this[ 
   object parameter
]; {get; set;}