c#获取TreeView Parent节点列表

List<TreeNode> parentNodes = new List<TreeNode>();

// 递归遍历TreeView节点
private void GetParentNodes(TreeNode node)
{
    if (node.Parent != null)
    {
        parentNodes.Add(node.Parent);
        GetParentNodes(node.Parent);
    }
}

// 循环遍历TreeView节点
private void GetParentNodes(TreeNode node)
{
    while (node.Parent != null)
    {
        parentNodes.Add(node.Parent);
        node = node.Parent;
    }
}