private void Calculate_Click(object sender, EventArgs e) { bool isCar = CarRadioButton.Checked; bool isTruck = TruckRadioButton.Checked; bool isCarOrTruck = isCar || isTruck; if (isCar) { CalculatiorResultLabel.Visible = true; ErrorLabel.Text = ""; EmployeeSalaryTextBox.Text = "0"; } else if (isTruck) { CalculatiorResultLabel.Visible = true; ErrorLabel.Text = ""; } if (isCarOrTruck) { VehicleInformation vehicle = new VehicleInformation { PurchaseCost = Decimal.Parse(PurchaseCostTextBox.Text), PurchaseYear = int.Parse(PurchaseYearTextBox.Text), MileageOnPurchase = int.Parse(MileagePurchaseTextBox.Text), MileageCurrent = int.Parse(MileageCurrentTextBox.Text), ValueCurrent = Decimal.Parse(CurrentValueTextBox.Text), FuelCosts = Decimal.Parse(FuelCostTextBox.Text), InsuranceCosts = Decimal.Parse(InsuranceTextBox.Text), CarWashCosts = Decimal.Parse(CarWashTextBox.Text), ServiceCosts = Decimal.Parse(ServiceCostTextBox.Text), ParkingCosts = Decimal.Parse(ParkingCostTextBox.Text), OtherCosts = Decimal.Parse(OthersTextBox.Text), EmployeeSalary = Decimal.Parse(EmployeeSalaryTextBox.Text) }; if (isCar) { Car car = new Car(); Dictionary <string, decimal> carCosts = car.CalculateMaintenanceCosts(vehicle); CalculatiorResultLabel.Text = car.GenerateFormattedReport(carCosts); } else if (isTruck) { Truck truck = new Truck(); Dictionary <string, decimal> truckCosts = truck.CalculateMaintenanceCosts(vehicle); CalculatiorResultLabel.Text = truck.GenerateFormattedReport(truckCosts); } } else { ErrorLabel.Text = "Set the type of the Vehicle!"; } }