c# - 如何搜索树节点并返回它？

Question

我写了这个函数，但我不知道如何写它的其余部分它应该是递归的，我不知道

  public TreeNode FindNodeByText(TreeView m, string s)
        {
            TreeNodeCollection nodes = m.Nodes;
            foreach (TreeNode n in nodes)
            {
                if (n.Text == s)
                    return n;
                else
                    ??????????
            }
        }

Answer 1

像这样的东西：

public TreeNode FindNodeByText(TreeView m, string s)
{
    TreeNodeCollection nodes = m.Nodes;
    foreach (TreeNode n in nodes)
    {
        if (n.Text == s)
            return n;
        else
            return FindNodeByTextInTreeNode(n, s);
    }

    return null;
}

public TreeNode FindNodeByTextInTreeNode(TreeNode node, string s)
{
    TreeNodeCollection nodes = node.ChildNodes;
    foreach (TreeNode n in nodes)
    {
        if (n.Text == s)
            return n;
        else
            return FindNodeByTextInTreeNode(n, s);
    }

    return null;
}