public Action<ItemEvent<T>> OnItemAdded { get; set; }

Public Property OnItemAdded As Action(Of ItemEvent(Of T))
	Get
	Set

public:
property Action<ItemEvent<T>^>^ OnItemAdded {
	Action<ItemEvent<T>^>^ get ();
	void set (Action<ItemEvent<T>^>^ value);
}

member OnItemAdded : Action<ItemEvent<'T>> with get, set