public MainWindow()
        {
            InitializeComponent();

            ListClients newPage = new ListClients();
            pageTransitionControl.ShowPage(newPage);
            cboDate.Content = DateTime.Now.ToString("dd MMMM yyyy");
            lbTime.Content = DateTime.Now.ToString("hh:mm:ss tt");
        }
 private void HomePage_Click_1(object sender, RoutedEventArgs e)
 {
     ListClients newPage = new ListClients();
     pageTransitionControl.ShowPage(newPage);
 }