private void cmbLogout(object sender, RoutedEventArgs e)
        {
            TechnicianLogin techLogin = new TechnicianLogin();

            techLogin.Show();
            this.Close();
        }
        public Login()
        {
            InitializeComponent();
            TechnicianLogin techLogin = new TechnicianLogin();

            techLogin.Show();
            txtUsername.Focus();
        }