void PopulateFormWithCar()
{
var service = new CarService();
var car = service.GetCar();
if (car == null)
return;
colorTextBox.Text = car.Color;
makeTextBox.Text = car.Make;
modelTextBox.Text = car.Model;
yearTextBox.Text = car.Year.ToString();
}
void SaveCarFromForm()
{
var car = new Car();
car.Color = colorTextBox.Text;
car.Make = makeTextBox.Text;
car.Model = modelTextBox.Text;
int year;
if (int.TryParse(yearTextBox.Text, out year))
car.Year = year;
var service = new CarService();
service.SaveCar(car);
}