custom events at .net framework

The following procedure demonstrates how to add events that follow the standard .NET Framework pattern to your classes and structs.

//1. Define a class to hold custom event arguments
public class CustomEventArgs : EventArgs
{ // add the properties and attributes that needed to be passed in the event arguments
public CustomEventArgs(string s)
{
message = s;
}
private string message;

public string Message
{
get { return message; }
set { message = value; }
}
}

// 2. Class that publishes an event
class Publisher
{
// Declare the event using EventHandler
public event EventHandler MyCustomEvent;
}

//3. Class that subscribes to an event
class Subscriber
{
public Subscriber()
{
Publisher pub=new Publisher();
// Subscribe to the event using C# 2.0 syntax
pub.MyCustomEvent += new EventHandler(MyCustomEvent_Handler);
}

// Define what actions to take when the event is raised.
void MyCustomEvent_Handler(object sender, CustomEventArgs e)
{
// the event handler
--------> third line at execution
}
}

//4. class to raise the event

class Raiser
{
public void Mani()
{
Publisher pub=new Publisher(); -------> first line at execution
pub.MyCustomEvent(new CustomEventArgs("testing")); -----> second line at execution
}
}