问有没有在TreeView.Nodes集合中搜索TreeNode.Text字段的方法？

EN

TreeNode[] treeNodes = treeView.Nodes
                                    .Cast<TreeNode>()
                                    .Where(r => r.Text == "yourText")
                                    .ToArray();

var nodes = treeView1.FlattenTree()
                     .Where(n => n.Text == "sometext")
                     .ToList();

public static class SOExtension
{
    public static IEnumerable<TreeNode> FlattenTree(this TreeView tv)
    {
        return FlattenTree(tv.Nodes);
    }

    public static IEnumerable<TreeNode> FlattenTree(this TreeNodeCollection coll)
    {
        return coll.Cast<TreeNode>()
                    .Concat(coll.Cast<TreeNode>()
                                .SelectMany(x => FlattenTree(x.Nodes)));
    }
}

public static TreeNode[] Find(this TreeNode motherNode, string findNodeText)
{
    List<TreeNode> nodeList = new List<TreeNode>();
    foreach (TreeNode childNode in motherNode.Nodes)
        if (childNode.Text.Equals(findNodeText, StringComparison.CurrentCulture))
            nodeList.Add(childNode);
    return nodeList.ToArray<TreeNode>();
}

TreeView myTreeView = new TreeView();
foreach (TreeNode node in myTreeView.Nodes)
{
    TreeNode[] childNodes = node.Find("Text");
    // Do something...
}