C# -- Write a File Listing to a txt File

FileListToFile.cs

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

namespace CheckUploadH
{
    class Program
    {
        static void Main(string[] args)
        {
            string targetFile = @"O:\Work\Remits\uploadh_log.TXT";
            StreamWriter sw;
            sw = File.AppendText(targetFile);

            string directoryToCheck = @"U:\";
            string[] dirs = Directory.GetFiles(directoryToCheck, "*.835");

            sw.WriteLine(DateTime.Now);
            sw.WriteLine("-");
      
            foreach (string dir in dirs)
            {
                Console.WriteLine(dir);
                sw.WriteLine(dir);
            }

            sw.WriteLine("===========================================================");
            sw.Close();
        }
    }
}