[DevExpress]TreeList展开指定类型级别的节点_.NET_编程开发_程序员俱乐部

class="csharpcode">public static void ExpendPointTypeNode(TreeList _tree, NodeType _type)
        {
            if (_tree == null) return;
            CrossThreadOperate.InvokeControlAction<TreeList>(_tree, t =>
            {
                foreach (TreeListNode _node in _tree.Nodes)
                {
                    if ((NodeType)_node.Tag == _type)
                    {
                        ProcessNodeExpend(_node);
                        continue;
                    }
                    ExpendPointTypeNode(_tree, _node, _type);
                }
            });
        }
        private static void ProcessNodeExpend(TreeListNode _node)
        {
            TreeListNode _currentNode = _node;
            while (_currentNode.ParentNode != null)
            {
                _currentNode.ParentNode.Expanded = true;
                _currentNode = _currentNode.ParentNode;
            }
        }
        private static void ExpendPointTypeNode(TreeList _tree, TreeListNode _node, NodeType _type)
        {
            CrossThreadOperate.InvokeControlAction<TreeList>(_tree, t =>
            {
                foreach (TreeListNode _n in _node.Nodes)
                {
                    if ((NodeType)_n.Tag == _type)
                    {
                        ProcessNodeExpend(_n);
                        continue;
                    }
                    ExpendPointTypeNode(_tree, _n, _type);
                }
            });
        }

使用：

CabTreeOperate.ExpendPointTypeNode(this.cabTreeControl.Tree, NodeType.Cab);