C#事件-1

標籤：str   new   handle   collect   dea   procs   string   oev   void   

 1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6  7  8 namespace Wrox.ProCSarp.Delegates 9 {10     public class CarInfoEventArgs:EventArgs11     {12         public CarInfoEventArgs(string car)13         {14             this.Car = car;15         }16         17         public string Car {get; private set;}18     }19     20     public class CarDealer21     {22         public event EventHandler<CarInfoEventArgs> NewCarInfo;23         24         public void NewCar(string car)25         {26             Console.WriteLine ("CarDealer, new car{0}", car);27             28             RaiseNewCarInfo(car);29         }30         31         protected virtual void RaiseNewCarInfo(string car)32         {33             EventHandler<CarInfoEventArgs> newCarInfo = NewCarInfo;34             if (newCarInfo != null)35             {36                 newCarInfo(this, new CarInfoEventArgs(car));37             }38         }39     }40 }

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C#事件-1