Public Class ObservableItemCollection(Of T As INotifyPropertyChanged) 
   Inherits System.Collections.ObjectModel.ObservableCollection(Of T)
   Implements INotifyItemChanged 

Dim instance As ObservableItemCollection(Of T)

public class ObservableItemCollection<T> : System.Collections.ObjectModel.ObservableCollection<T>, INotifyItemChanged  where T: INotifyPropertyChanged

public class ObservableItemCollection = class(System.Collections.ObjectModel.ObservableCollection, INotifyItemChanged)

JScript does not support Generics.

public __gc class ObservableItemCollection<T> : public System.Collections.ObjectModel.ObservableCollection<T>, INotifyItemChanged  where T: INotifyPropertyChanged

generic<typename T>
public ref class ObservableItemCollection : public System.Collections.ObjectModel.ObservableCollection<T>, INotifyItemChanged  where T: INotifyPropertyChanged