C #-Events

<summary>
Custom Events-Steps:
1. Declaring a delegate about an event
2. Declaring events
3, write the method of triggering event
4. Create Event handlers
5. Registering Event handlers
6. Departure events under appropriate conditions
</summary>

Dog.cs Code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Threading.Tasks;6 7 namespaceEvents8 {9      Public classDogTen     { One         //1. Declaring a delegate about an event: the sender of the sending event: The parameters of the event itself A          Public Delegate voidAlarmevenhandler (Objectsender, EventArgs e); -  -         //2. Declaring Events the          Public EventAlarmevenhandler Alarm; -  -         //3, write the method of triggering event -          Public voidOnalarm () +         { -             if(Alarm! =NULL) +             { AConsole.WriteLine ("\ n The dog called the police and a thief came in ... \ nyou ... \ n"); at                 //Find Events -                  This. Alarm ( This,NewEventArgs ()); -             } -         } -     } -}

Host.cs Code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Threading.Tasks;6 7 namespaceEvents8 {9      Public classHostTen     { One         //4. Write Event handling methods A          Public voidHosthandlealarm (Objectsender, EventArgs e) -         { -Console.WriteLine ("Master: Catch the thief! "); the         } -  -         //5, Registration time processing method -          PublicHost (dog dog) +         { -Dog. Alarm + =NewDog.alarmevenhandler (hosthandlealarm); +         } A     } at}

Program.cs Code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Threading.Tasks;6 7 namespaceEvents8 {9     class ProgramTen     { One         //6. Triggering Events A         Static voidMain (string[] args) -         { -Dog dog =NewDog (); the  -Host host =NewHost (dog); -  -Console.WriteLine ("The thief entered into ... .. ......."); +  - Dog. Onalarm (); +  A Console.readkey (); at         } -     } -}

C #-Events