Question

我有一个文本框可以接受所选文件夹的路径。我需要在 TreeView 中显示该文件夹中的所有子文件夹。

我怎么能这么做?

Answer 1

string Path = @"C:Temp Folder";
string[] folders = System.IO.Directory.GetDirectories(Path, "*", System.IO.SearchOption.TopDirectoryOnly); 

       TreeNode treeNode = new TreeNode(Path);          
        TreeNode subNode;
        for (int i = 0; i < folders.Length; i++)
        {
            subNode = new TreeNode(folders[i].ToString());
            treeNode.Nodes.Add(subNode);            
        }
        treeView1.Nodes.Add(treeNode);

Answer 2

以下代码会帮助u。

           DirectoryInfo parentInfo = new DirectoryInfo(@"path");
           DirectoryInfo[] childInfo= parentInfo.GetDirectories();
           treeView1.Nodes.Add(parentInfo.Name);
            foreach(DirectoryInfo di in childInfo)
            {
                treeView1.Nodes[0].Nodes.Add(di.Name);
            }

Answer 3

I have done this in the past using VB.net (I will convert it for you shortly) All you need is a recursive function

YourTreeViewControl.Nodes.Add("C:Temp")
Recursive(@"C:Temp", Tree.Nodes(0))

    void Recursive(string d, TreeNode nodePar)
    {
        DirectoryInfo dir = new DirectoryInfo(d);
        foreach (var item in dir.GetDirectories()) {
            Recursive(item.FullName, nodePar.Nodes.Add(item.Name));
        }
    }

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