private void Tile8_Click(object sender, RoutedEventArgs e)
 {
     apps.StaffRegistration sreg = new apps.StaffRegistration();
     sreg.WindowState = WindowState.Maximized;
     sreg.ShowDialog();
 }
 private void Tile8_Click(object sender, RoutedEventArgs e)
 {
     apps.StaffRegistration sreg = new apps.StaffRegistration();
     sreg.WindowState = WindowState.Maximized;
     sreg.ShowDialog();
 }