using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;

namespace MusicLibUtility
{
    public class RecursiveFileSearch
    {
        static System.Collections.Specialized.StringCollection log = new System.Collections.Specialized.StringCollection();

        public void WalkDirectoryTree(System.IO.DirectoryInfo rootDir)
        {
            System.IO.FileInfo[] files = null;
            System.IO.DirectoryInfo[] subDirs = null;

            // First, process all the files directly under this folder
            try
            {
                files = rootDir.GetFiles("*.*");
            }
            // This is thrown if even one of the files requires permissions greater
            // than the application provides.
            catch (UnauthorizedAccessException e)
            {
                // This code just writes out the message and continues to recurse.
                // You may decide to do something different here. For example, you
                // can try to elevate your privileges and access the file again.
                log.Add(e.Message);
            }

            catch (System.IO.DirectoryNotFoundException e)
            {
                Console.WriteLine(e.Message);
            }

            if (files != null)
            {
                foreach (System.IO.FileInfo fi in files)
                {
                    // In this example, we only access the existing FileInfo object. If we
                    // want to open, delete or modify the file, then
                    // a try-catch block is required here to handle the case
                    // where the file has been deleted since the call to TraverseTree().
                    Console.WriteLine(fi.FullName);
                }

                // Now find all the subdirectories under this directory.
                subDirs = rootDir.GetDirectories();

                foreach (System.IO.DirectoryInfo dirInfo in subDirs)
                {
                    // Resursive call for each subdirectory.
                    WalkDirectoryTree(dirInfo);
                }
            }
        }
    }
}