'宣言 Protected Overrides Function CreateInstance( _ ByVal positionItem As IHierarchicalPositionItem(Of String,Object), _ ByVal index As Integer, _ ByVal memberIndex As Integer, _ ByVal positionSize As Integer _ ) As PositionItemInfo(Of String,Object)
protected override PositionItemInfo<string,object> CreateInstance( IHierarchicalPositionItem<string,object> positionItem, int index, int memberIndex, int positionSize )