C#高级语法基础知识总结5——委托&事件

#region 事件发布程序

public class CarInfoEventArgs : EventArgs

{

public string Car { get; private set; }

public CarInfoEventArgs(string car)

{

this.Car = car;

}

}

public class CarDealer

{

public event EventHandler<CarInfoEventArgs> NewCarInfo;//定义事件委托

public void NewCar(string car)

{

Console.WriteLine("CarDealer,新车{0}",car);

if(NewCarInfo!=null)

{

NewCarInfo(this,new CarInfoEventArgs(car));

}

}

}

#endregion

#region 事件侦听器

public class Consumer

{

private string name;

public Consumer(string name)

{

this.name = name;

}

public void NewCarIsHere(object sender, CarInfoEventArgs e)

{

Console.WriteLine("{0}:车{1}是新的", name, e.Car);

}

}

#endregion

Console.WriteLine("事件-----------");

var dealer = new DelegateEvent.CarDealer();

var Soar = new DelegateEvent.Consumer("苏国强");

dealer.NewCarInfo += Soar.NewCarIsHere;

dealer.NewCar("博兰基尼");