private void submitButton_Click(object sender, System.EventArgs e) { FuelEconomy milage = new FuelEconomy(); milage.milesPerGallon = Convert.ToDecimal(milageTextBox.Text); Weight weight = new Weight(); weight.kilograms = Convert.ToDecimal(weightTextBox.Text); Weight loadWeight = new Weight(); Volume maxFuel = new Volume(); maxFuel.litres = Convert.ToDecimal(maxFuelTextBox.Text); MotorbikeServices motorbikeServiceObj = new MotorbikeServices(); motorbikeServiceObj.Add( vehicleNameTextBox.Text, numberPlateTextBox.Text, milage, weight, maxFuel, Convert.ToInt32(maxPassengersTextBox.Text), sideCarCheckBox.Checked ); (Owner as MotorbikeFormView).FillMotorbikeList(); Close(); }