目录生成树的方法参考

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1.  private void button1_Click(object sender, EventArgs e)
2.         {
3.             DirectoryInfo di = new DirectoryInfo(textBox1.Text);
4.             if (!di.Exists)
5.             {
6.                 MessageBox.Show("路径不存在");
7.                 return;
8.             }
9.             TreeNode tn = new TreeNode(di.Name);
10.             tn.Tag = di.FullName;
11.             treeView1.Nodes.Add(tn);
12.             AddChildNodes(tn);
13.             treeView1.ExpandAll();
14.         }
16.         private void AddChildNodes(TreeNode tn)
17.         {
18.             DirectoryInfo di = new DirectoryInfo(tn.Tag.ToString());
19.             if (!di.Exists)
20.                 return;
21.             foreach (DirectoryInfo dir in di.GetDirectories("*.*", SearchOption.AllDirectories))
22.             {
23.                 TreeNode node = new TreeNode(dir.Name);
24.                 node.Tag = dir.FullName;
25.                 tn.Nodes.Add(node);
26.                 AddChildNodes(node);
27.             }
28.         }