C# を使用してディレクトリ内の利用可能なすべてのファイルを一覧表示するにはどうすればよいですか?

//creating a DirectoryInfo object
DirectoryInfo mydir = new DirectoryInfo(@"d:\amit");

FileInfo [] f = mydir.GetFiles();

using System;
using System.IO;

namespace Demo {
   class Program {
      static void Main(string[] args) {
         //creating a DirectoryInfo object
         DirectoryInfo mydir = new DirectoryInfo(@"d:\amit");

         // getting the files in the directory, their names and size
         FileInfo [] f = mydir.GetFiles();

         foreach (FileInfo file in f) {
            Console.WriteLine("File Name: {0} Size: {1}", file.Name, file.Length);
         }
         Console.ReadKey();
      }
   }
}