/// <summary>
/// Deletes the selected vehicle in the combobox when clicked
/// </summary>
private void button_del_vehicle_Click(object sender, RoutedEventArgs e)
{
Vehicle v = (Vehicle)this.comboBox_Del_Vehicle.SelectedItem;
if (v != null)
{
mycardealer.DeleteVehicle(v.LicensePlate);
}
mycardealer.SaveVehiclesToFile();
this.comboBox_Del_Vehicle.ItemsSource = mycardealer.LoadVehicles();
//MessageBox.Show(mycardealer.ToString());
}