public virtual HierarchyDataCollection<HierarchyData<T>> Children { get; set; }

Public Overridable Property Children As HierarchyDataCollection(Of HierarchyData(Of T))
	Get
	Set

public:
virtual property HierarchyDataCollection<HierarchyData<T>^>^ Children {
	HierarchyDataCollection<HierarchyData<T>^>^ get ();
	void set (HierarchyDataCollection<HierarchyData<T>^>^ value);
}

abstract Children : HierarchyDataCollection<HierarchyData<'T>> with get, set
override Children : HierarchyDataCollection<HierarchyData<'T>> with get, set