private void refreshCbUsers()
        {
            dataForDec.InputFile = AES_Configuration.decInFile;
            XmlTextReaderWriter reader = new XmlTextReaderWriter(dataForDec);

            dataForDec          = reader.ReadXml();
            cbUsers.ItemsSource = dataForDec.UsersCollection.Keys;
        }
        public MainWindow()
        {
            InitializeComponent();

            tbEncInFile.Text  = AES_Configuration.encInFile;
            tbEncOutFile.Text = AES_Configuration.encOutFile;
            tbDecInFile.Text  = AES_Configuration.decInFile;
            tbDecOutFile.Text = AES_Configuration.decOutFile;

            tablePreparedUsers.Columns.Add(_gridViewUser.Header.ToString());
            tablePreparedUsers.Columns.Add(_gridViewPasswd.Header.ToString());

            dataForDec.InputFile = AES_Configuration.decInFile;
            XmlTextReaderWriter reader = new XmlTextReaderWriter(dataForDec);

            dataForDec = reader.ReadXml();

            try{
                cbUsers.ItemsSource = dataForDec.UsersCollection.Keys;
            }
            catch { }
        }