public CostumersList()
        {
            InitializeComponent();

            CustomerSelectionComboBox.ItemsSource       = customersBL.GetAll();
            CustomerSelectionComboBox.DisplayMemberPath = "full_Name";
        }
 public AddCustomerOrder()
 {
     InitializeComponent();
     CostumerSelectionComboBox.ItemsSource       = costumerBL.GetAll();
     CostumerSelectionComboBox.DisplayMemberPath = "full_Name";
 }