/// <summary>/// 向上遞歸，獲取符合條件的父節點/// </summary>/// <param name="node">需要向上遞歸的節點</param>/// <param name="conditionHanlder">判斷條件【委托】</param>/// <returns>符合條件的節點【TreeListNode】</returns>public static TreeListNode GetParentNode(this TreeListNode node, Predicate<TreeListNode> conditionHanlder){  TreeListNode _parentNode = node.ParentNode;//獲取上一級父節點  TreeListNode _conditonNode = null;  if (_parentNode != null)  { if (conditionHanlder(_parentNode))//判斷上一級父節點是否符合要求 {   _conditonNode = _parentNode; } if (_conditonNode == null)//若沒有找到符合要求的節點，遞歸繼續   _conditonNode = GetParentNode(_parentNode, conditionHanlder);  }  return _conditonNode;}

TreeListNode _node = e.Node;TreeListNode _condionParent = _node.GetParentNode(n => n.GetNodeType() == NodeType.Cab);//獲取類型為CAB類型的父節點Trace.WriteLine(_condionParent.GetName());