view folder file subfolders tree in csharp

main.cs
using System;
using System.IO;

class Program
{
    static void Main(string[] args)
    {
        // the root directory to print
        string rootDir = @"C:\Users\Public";

        // call the recursive method to print the tree structure
        PrintDirectoryTree(rootDir, "");
    }

    static void PrintDirectoryTree(string rootDir, string indent)
    {
        Console.WriteLine(indent + rootDir);

        try
        {
            // get all the sub-directories of the root directory
            string[] subDirs = Directory.GetDirectories(rootDir);

            // recursively print the tree structure of each sub-directory
            foreach (string subDir in subDirs)
            {
                PrintDirectoryTree(subDir, indent + "    ");
            }

            // get all the files in the root directory
            string[] files = Directory.GetFiles(rootDir);

            // print the name of each file in the root directory
            foreach (string file in files)
            {
                Console.WriteLine(indent + "    " + Path.GetFileName(file));
            }
        }
        catch
        {
            // ignore exceptions such as access denied
        }
    }
}
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