Use of event in C #

When writing a module in a project, we can write a series of public interfaces for others to call. This method is generally passive waiting for being called, after the transaction is processed, it is returned to the caller interface. However, when something happens in our module and we need to actively notify others, the public interface is very weak. In this case, we can use event to do this.

1 public class eventdemo 2 {3 Public Delegate void myeventhandler (Object sender, myeventargs E); 4 public static event myeventhandler myevent; 5 6 private void getsomething () 7 {8/* something has happened and you want to notify the user using my module */9 If (myevent! = NULL) 10 {11 myargs = new myeventargs (); 12 // notify the event. Something you need to know can be passed out in myargs 13 myevent (this, myargs); 14} 15} 16} 17 18 public class myeventargs: eventargs19 {20 public int myintdata; 21 public bool mybooldata; 22}

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