NotificationEventOldParentFolderId - свойство

Gets the Id of the old parent folder of the item or folder this event applies to. OldParentFolderId is only meaningful when EventType is equal to either EventType.Moved or EventType.Copied. For all other event types, OldParentFolderId is null.

public FolderId OldParentFolderId { get; }

Public ReadOnly Property OldParentFolderId As FolderId
	Get

public:
property FolderId^ OldParentFolderId {
	FolderId^ get ();
}

member OldParentFolderId : FolderId with get