Question

I am learning c# and need to find a folder when the complete path is unknown. An example would be you know the the album name but not the artist in the music folder. Finding an album name is NOT the final usage for this code but the best example for this question. I am doing this with recursion and limiting the depth of the search. Everything works good except when I find the folder and list the files I want it to stop and return but it does not, it just keeps the recursion going even after I have the the folder. I have also struggled with exception handling like how to skip a folder if permissions are not valid.

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

     namespace listFoldersTest
    {
        class Program
        {
            static void Main(string[] args)
            {
                Console.SetWindowSize(100, 50);
                DirectoryInfo dir = new DirectoryInfo(@"C:\Users\username\Music");
                getDirsFiles(dir, 0, 2);
                Console.ReadKey();
                Console.WriteLine("done");
            }
            public static void getDirsFiles(DirectoryInfo d, int currentDepth, int maxDepth)
            {
                String folderToFindName = ("albumName");
                bool foundIt = false;

                if (currentDepth < maxDepth)
                {
                    DirectoryInfo[] dirs = d.GetDirectories("*.*");
                    foreach (DirectoryInfo dir in dirs)
                    {
                        String pathName = (dir.FullName);
                        Console.WriteLine("\r{0} ", dir.Name);
                        if (currentDepth == (maxDepth - 1))
                        {                                                                                                                                         
                            if (pathName.IndexOf(folderToFindName) != -1)
                            {
                                foundIt = true;
                                FileInfo[] files = dir.GetFiles("*.*");
                                foreach (FileInfo file in files)
                                {
                                    Console.WriteLine("-------------------->> {0} ", file.Name);
                                } //end foreach files

                            } // end if pathName

                        } // end if of get files current depth

                        if (foundIt == true)
                        {
                            return;
                        }
                        getDirsFiles(dir, currentDepth + 1, maxDepth);

                    } //end if foreach directories

                } //end if directories current depth

            } // end getDirsFiles function
        }
    }

Answer 1

using System;
using System.IO;

namespace listFoldersTest
{
  class Program
  {
    private static bool foundIt;

    static void Main(string[] args)
    {
        Console.SetWindowSize(100, 50);
        try
        {
            DirectoryInfo dir = new DirectoryInfo(args[0]);
            getDirsFiles(dir, 0, 2);
        }
        catch
        {
        }
        Console.ReadKey();
        Console.WriteLine("done");
    }

    public static void getDirsFiles(DirectoryInfo d, int currentDepth, int maxDepth)
    {
        if(d == null || foundIt) return;
        String folderToFindName = ("albumName");
        if (currentDepth < maxDepth)
        {
            DirectoryInfo[] dirs = d.GetDirectories("*.*");
            foreach (DirectoryInfo dir in dirs)
            {
                String pathName = (dir.FullName);
                Console.WriteLine("\r{0} ", dir.Name);
                if (currentDepth == (maxDepth - 1))
                {
                    if (pathName.IndexOf(folderToFindName) != -1)
                    {
                        foundIt = true;
                        FileInfo[] files = dir.GetFiles("*.*");
                        foreach (FileInfo file in files)
                        {
                            Console.WriteLine("-------------------->> {0} ", file.Name);
                        } //end foreach files
                        return;
                    } // end if pathName
                } // end if of get files current depth
                getDirsFiles(dir, currentDepth + 1, maxDepth);
            } //end if foreach directories
        } //end if directories current depth
    } // end getDirsFiles function
  }
}