/// <summary>/// 節點互斥同步/// 說明/// eg:///TreeListNode _node = e.Node;///_node.SyncMutexNodeCheckState(_node.CheckState, n => n.GetNodeType() == NodeType.Cab);/// </summary>/// <param name="node">需要互斥同步的節點</param>/// <param name="checkState">節點狀態</param>/// <param name="checkHanlder">互斥條件【委托】</param>public static void SyncMutexNodeCheckState(this TreeListNode node, CheckState checkState, Predicate<TreeListNode> checkHanlder){  TreeList _tree = node.TreeList;  if (checkHanlder(node))//當前節點符合互斥條件時候  { _tree.DownRecursiveTree(n => n.CheckState = CheckState.Unchecked);  }  else  { TreeListNode _curParentNode = node.GetParentNode(checkHanlder);//獲取符合互斥條件的父節點 if (_curParentNode == null) return; TreeListNode _thePubleNode = node.GetPublicParentNode(checkHanlder);//獲取符合互斥條件的公共父節點 if (_thePubleNode == null) return; foreach (TreeListNode n in _thePubleNode.Nodes) {   foreach (TreeListNode nc in n.Nodes)   { if (nc != _curParentNode) {   nc.CheckState = CheckState.Unchecked;   nc.DownRecursiveNode(nr => nr.CheckState = CheckState.Unchecked); }   } }  }  node.SyncNodeCheckState(checkState);  node.CheckState = checkState;}}/// <summary>/// 向上遞歸，獲取符合條件的節點的公共父節點/// </summary>/// <param name="node">操作節點</param>/// <param name="checkHanlder">委托</param>/// <returns>符合條件的節點</returns>public static TreeListNode GetPublicParentNode(this TreeListNode node, Predicate<TreeListNode> checkHanlder){  TreeListNode _publicPNode = null;  TreeListNode _findNode = node.GetParentNode(checkHanlder);//先獲取到條件判斷的自身父節點  if (_findNode != null)  { //開始向上遞歸 UpwardRecursiveNode(_findNode, n => {   TreeListNode _curpublicNode = n.ParentNode;//獲取當前向上遞歸的父節點   if (_curpublicNode != null)   { if (_curpublicNode.Nodes.Count > 1)//若有多個子節點，則是公共父節點 {   _publicPNode = _curpublicNode;   return false;//跳出遞歸 }   }   return true;//繼續遞歸 });  }  return _publicPNode;}/// <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;_node.SyncMutexNodeCheckState(_node.CheckState, n => n.GetNodeType() == NodeType.Cab);