Pobieranie folderu C#

private void DownloadFileFTP2()
        {
            string inputfilepath = @"C:\VB\VB_Data";
            string ftphost = "xxxxxx.xxx.pl";
            string ftpfilepath = "VB_Data//";

            string ftpfullpath = "ftp://" + ftphost + "//" + ftpfilepath;

            WebClient request = new WebClient();
            request.Credentials = new NetworkCredential("Login", "Hasło");
            byte[] fileData = request.DownloadData(ftpfullpath);

            FileStream file = File.Create(inputfilepath);
            file.Write(fileData, 0, fileData.Length);
            file.Close();
            MessageBox.Show("Pobrano");
        } 

  file.Write(fileData, 0, fileData.Length);