Maha

Maha

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1. SomeEvent()

Jun 9 2007 6:54 AM

June 9, 2007

 

Hi Guys

 

I got the following program from the website. Address is given. I couldn’t understand the following code in the program (particularly SomeEvent();????????? it seems a method).  Please anybody explain.

 

public void OnSomeEvent()

{

      if(SomeEvent != null)

            SomeEvent();

}

 

Thank you

 

//A very simple event demonstration

//http://www.java2s.com/Code/CSharp/Language- Basics/Averysimpleeventdemonstration.htm

 

using System;

 

// Declare a delegate for an event. 

delegate void MyEventHandler();     //Delegate named MyEventHandler 

 

// Declare an event class.

class MyEvent

{

      public event MyEventHandler SomeEvent;    //an event named SomeEvent

 

      // This is called to fire the event.

      public void OnSomeEvent()

      {

            if(SomeEvent != null)

                  SomeEvent();

      }

}

 

public class EventDemo

{

      // An event handler.

      static void handler()

      {

            Console.WriteLine("Event occurred");

      }

 

      public static void Main()

      { 

            MyEvent evt = new MyEvent();

 

            // Add handler() to the event list.

            evt.SomeEvent += new MyEventHandler(handler);   //SomeEvent - event name

                                                                                    //MyEventHandler - Delegate name

            // Fire the event.

            evt.OnSomeEvent();

 

            //We need a way to take some actions when an event is fired (or we can say took place)

 

      }

}

/*

Event occurred

*/


Answers (4)