private void BtnAddJourney_Click(object sender, EventArgs e)
{
RegisterJourneyForm f1 = new RegisterJourneyForm();
this.Hide();
f1.Show();
}
private void BtnAddJourney_Click(object sender, EventArgs e)
{
RegisterJourneyForm JourneyForm = new RegisterJourneyForm(VehicleList);
JourneyForm.ShowDialog();
}