private void _buttonUpdateVehicleStatus_Click(object sender, EventArgs e)
        {
            string licennseNumber = LicennseNumberRequest(true);

            if (m_CurrentlicennseNumberRequest.DialogResult != DialogResult.Cancel)
            {
                m_StatusRequestForm = new StatusRequestForm();
                m_StatusRequestForm.ShowDialog();
                if (m_StatusRequestForm.DialogResult != DialogResult.Cancel)
                {
                    int    userStatusChoice = m_StatusRequestForm.ComboBoxVehicleStatus + 1;
                    string updateMessage    = m_GarageSystem.UpdateVehicleStatus(licennseNumber, userStatusChoice.ToString());
                    MessageBox.Show(updateMessage, "Success", MessageBoxButtons.OK);
                }
            }
        }
 private void _buttonShowVehicles_Click(object sender, EventArgs e)
 {
     m_StatusRequestForm = new StatusRequestForm();
     m_StatusRequestForm.ShowDialog();
     if (m_StatusRequestForm.DialogResult != DialogResult.Cancel)
     {
         int    userStatusChoice = m_StatusRequestForm.ComboBoxVehicleStatus + 1;
         string vehicleToShow    = m_GarageSystem.GetVehiclesLicenseMessageByChoice(userStatusChoice.ToString());
         if (vehicleToShow == null)
         {
             MessageBox.Show("There are no vehicles in status " +
                             Vehicle.VehicleStatus.ParseFromString(userStatusChoice.ToString()), "ERROR", MessageBoxButtons.OK);
         }
         else
         {
             ShowVehiclesForm showVehiclesForm = new ShowVehiclesForm(vehicleToShow);
             showVehiclesForm.ShowDialog();
         }
     }
 }