Some days ago I was working on procedures that need be executed in a second thread to avoid blocking the application GUI, so I implemented something simple to search files in a "iterative" way.

El otro dia estaba viendo procedimientos que necesitan ejecutar en un segundo hilo para no bloquear la aplicacion, e implemente algo muy sencillo para buscar archivos de manera "iterativa":

using System;
using System.Collection.Generic;
using System.IO;

public class FileSeeker
{

public static string[] RetrieveFilesFrom(string directory, string searchPattern,int level)
{
 List filenames = new List();
 Stack directories = new Stack()

 directories.Push(directory);

 while(directories.count!=0)
 {
  string currentDirectory = directoriesStack.Pop();
 
  foreach(string file in Directory.GetFiles(currentDirectory,searchPattern))
    filenames.Add(file);


  if((level==-1) || (directories.count != level))
  {
   foreach(string subDirectory in Directory.GetDirectories(currentDirectory))
    directories.Push(subDirectory);
  }

 }
 return filenames.ToArray();
}

}

public class Program
{

public static void Main(string[] args)
{
 foreach(string path in FileSeeker.RetrieveFilensFrom(@"C:\Program Files\", "*.exe",-1)
  Console.WriteLine(path);
 Console.Read();
}

}

Now I'm encapsulating all the behavior in a component with more features, like search using regular expressions, file size, creation time, etc. As soon I finish it, I will write an article for elguille's site.