/// <summary>
/// 保存.
/// </summary>
/// <param name="data"></param>
public void SaveCarData(Car data)
{
if (data.CarID == 0)
{
context.CarDbSet.Add(data);
}
else
{
context.Entry(data).State = EntityState.Modified;
}
context.SaveChanges();
}
static void Main(string[] args)
{
Test t = new Test();
Car c1 = new Car()
{
CarName = "BMW",
Engine = new Engine()
{
EngineName = "BMW发动机"
}
};
Car c2 = new Car()
{
CarName = "奥迪",
Engine = new Engine()
{
EngineName = "奥迪发动机"
}
};
t.SaveCarData(c1);
t.SaveCarData(c2);
foreach (Engine e in t.EngineDataSource)
{
Console.WriteLine("{0} 安装在 {1} 上.",
e.EngineName, e.OnCar.CarName);
}
Console.ReadLine();
}