List all the files from dir and sub dir - C#

This code shows how to list all the files from dir and sub dir

// all the Namespace is not mandatory, when you use VS 2008, by default first 4 namespace will appear,

// System.IO is mandatory for our functionality

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

using System.Collections;

///

/// Use this method to explore a directory and all of its files. Then, it

/// recurses into the next level of directories, and collects a listing

/// of all the file names you want.

///

static class FileSystemUtil

{

///

/// Find all files in a directory, and all files within every nested

/// directory.

///

/// The starting directory you want to use.

/// A string array containing all the file names.

static public string[] GetAllFileNames(string baseDir)

{

//

// Store results in the file results list.

//

List<string> fileResults = new List<string>();

//

// Store a stack of our directories.

//

Stack directoryStack = new Stack();

directoryStack.Push(baseDir);

//

// While there are directories to process

//

while (directoryStack.Count > 0)

{

string currentDir = (string)directoryStack.Pop();

//

// Add all files at this directory.

//

foreach (string fileName in Directory.GetFiles(currentDir, "*.*"))

{

fileResults.Add(fileName);

}

//

// Add all directories at this directory.

//

foreach (string directoryName in Directory.GetDirectories(currentDir))

{

directoryStack.Push(directoryName);

}

}

return fileResults.ToArray();

}

}

To Test the Snippet which is mentioned above, the following code will help us

class Program

{

static void Main()

{

//

// Get all files in the allensamuel directory (calling convention).

//

string dir = @"C:\Temp\";

string[] fileNames = FileSystemUtil.GetAllFileNames(dir);

//

// Loop through all files in the string array.

//

foreach (string fileName in fileNames)

{

Console.WriteLine(fileName);

}

Console.ReadLine();

}

}