private void btnAddVehicle_Click(object sender, EventArgs e) { Vehicle vehicle = new Vehicle(); vehicle.registration = tbox_addVehicle_registration.Text; vehicle.cargoSpace = int.Parse(tbox_addVehicle_CarsoSpace.Text); vehicle.fuelConsumption = double.Parse(tbox_addVehicle_fuelConsumption.Text); vehicle.brand = tbox_addVehicle_brand.Text; vehicle.model = tbox_addVehicle_model.Text; DeliveryHolder.vehicles.Add(vehicle); DeliveryClient.InsertVehicle(vehicle); clearTab(tabPageVehicle); setupRouteCmb(); }