/// <summary>
        /// Действия при инициализации страницы MenuClientPage
        /// </summary>
        public MenuClientPage()
        {
            InitializeComponent();
            AllBooksDataGrid.ItemsSource         = booksController.BooksInfoOutput();
            AvailableBooksDataGrid.ItemsSource   = booksController.GetAvailableBooks(Settings.Default.login);
            ClientTakenBooksDataGrid.ItemsSource = booksController.GetTradingBooks();

            FilterList.SelectedIndex = 0;
        }