如何列出目录中的所有子目录

Question

我正在研究一个项目,我需要在目录中列出所有子目录,例如我如何列出c:\中的所有子目录

Answer 1

使用Directory.GetDirectories获得由指定的目录的子目录"your_directory_path".结果是一个字符串数组.

var directories = Directory.GetDirectories("your_directory_path");

默认情况下,它只返回一级深度的子​​目录.有一些选项可以递归返回并过滤结果,在此处记录,并在Clive的答案中显示.

避免UnauthorizedAccessException

UnauthorizedAccessException如果你点击了一个你无法访问的目录,你很可能会得到一个.

您可能必须创建自己的方法来处理异常,如下所示:

public class CustomSearcher
{ 
    public static List<string> GetDirectories(string path, string searchPattern = "*",
        SearchOption searchOption = SearchOption.AllDirectories)
    {
        if (searchOption == SearchOption.TopDirectoryOnly)
            return Directory.GetDirectories(path, searchPattern).ToList();

        var directories = new List<string>(GetDirectories(path, searchPattern));

        for (var i = 0; i < directories.Count; i++)
            directories.AddRange(GetDirectories(directories[i], searchPattern));

        return directories;
    }

    private static List<string> GetDirectories(string path, string searchPattern)
    {
        try
        {
            return Directory.GetDirectories(path, searchPattern).ToList();
        }
        catch (UnauthorizedAccessException)
        {
            return new List<string>();
        }
    }
}

然后像这样调用它:

var directories = CustomSearcher.GetDirectories("your_directory_path");

Answer 2

这很容易:

string[] folders = System.IO.Directory.GetDirectories(@"C:\My Sample Path\","*", System.IO.SearchOption.AllDirectories);

Answer 3

FolderBrowserDialog fbd = new FolderBrowserDialog();

        DialogResult result = fbd.ShowDialog();

        string[] files = Directory.GetFiles(fbd.SelectedPath);
        string[] dirs = Directory.GetDirectories(fbd.SelectedPath);

        foreach (string item2 in dirs)
        {
            FileInfo f = new FileInfo(item2);

            listBox1.Items.Add(f.Name);

        }

        foreach (string item in files)
        {
            FileInfo f = new FileInfo(item);

            listBox1.Items.Add(f.Name);

        }

Answer 4

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TRIAL
{
    public class Class1
    {
        static void Main(string[] args)
        {
           string[] fileArray = Directory.GetDirectories("YOUR PATH");
           for (int i = 0; i < fileArray.Length; i++)
           {

               Console.WriteLine(fileArray[i]);
           }
            Console.ReadLine();
        }
    }
}