// Initial setup and grey-out logic.
public MainWindow()
{
this.InitializeComponent();
// Insert code required on object creation below this point.
// Insert Grey out logic here and afterwards.
textbox_bus_address.IsEnabled = false;
textbox_bus_phone.IsEnabled = false;
textbox_bus_seno.IsEnabled = false;
textbox_bus_fax.IsEnabled = false;
textbox_bus_contact.IsEnabled = false;
textbox_bus_company.IsEnabled = false;
this.mycardealer.CustomerList = mycardealer.LoadCustomers();
this.mycardealer.VehicleList = mycardealer.LoadVehicles();
this.comboBox_del_customer.ItemsSource = this.mycardealer.CustomerList;
this.comboBox_Del_Vehicle.ItemsSource = this.mycardealer.VehicleList;
this.select_combobox_customer.ItemsSource = this.mycardealer.CustomerList;
}