'宣言 Protected Friend Overridable Function CanSwapContainers( _ ByVal dragItemContainer As FrameworkElement, _ ByVal dragItemInfo As ItemInfoBase, _ ByVal swapTargetContainer As FrameworkElement, _ ByVal swapTargetItemInfo As ItemInfoBase _ ) As Boolean
protected internal virtual bool CanSwapContainers( FrameworkElement dragItemContainer, ItemInfoBase dragItemInfo, FrameworkElement swapTargetContainer, ItemInfoBase swapTargetItemInfo )