Serializacja XML

namespace sklep
{
      public partial class baza_klientow : Window
    {
        
        private List<klienci> m_klienciList = null;
        public klienci ss = new klienci(1, "a", "", "", "", "", "", 1, "", "", "");

        public baza_klientow()
        {
            InitializeComponent();
            InitBinding();
        }

        private void InitBinding()
        {
            m_klienciList = new List<klienci>();
            m_klienciList.Add(new klienci(1, "a", "", "", "", "", "", 1, "", "", ""));
            dataGrid_klienci.ItemsSource = m_klienciList;
        }

         public static T Load<T>(string FileSpec)
        {
            XmlSerializer formatter = new XmlSerializer(typeof(T));

            using (FileStream aFile = new FileStream(FileSpec, FileMode.Open))
            {
                byte[] buffer = new byte[aFile.Length];
                aFile.Read(buffer, 0, (int)aFile.Length);

                using (MemoryStream stream = new MemoryStream(buffer))
                {
                    return (T)formatter.Deserialize(stream);
                }
            }

        }

        public static void Save<T>(T ToSerialize, string FileSpec)
        {
            Directory.CreateDirectory(FileSpec.Substring(0, FileSpec.LastIndexOf('\\')));
            FileStream outFile = File.Create(FileSpec);
            XmlSerializer formatter = new XmlSerializer(typeof(T));

            formatter.Serialize(outFile, ToSerialize);
            outFile.Close();
        }

        private void btn_dodajKlienta_Click(object sender, RoutedEventArgs e)
        {
        }

        private void btn_wyszukajKlienta_Click(object sender, RoutedEventArgs e)
        {
            Save<klienci>(ss, "klienci.xml");
        }

        private void btn_modyfikujKlienta_Click(object sender, RoutedEventArgs e)
        {

        }
    }
}
}