NET base of the evil complement

One custom Event

1 has been used to trigger events using event, see Code

Define an event

public event EventHandler;

Triggering events

public void OnEvent () {

if (eventhandler!=null) {

EventHandler (This,eventargs.empty);

]

}

Using Events

Eventhandler+=eventhandlermethod (o,e);

2 Another way, although seen many times, but because of the lack of use has been looked to understand but their basic use

Private Action evenaction;

Defining events

Public event Action ActionEvent
{
Add {evenaction + = value;}
Remove {evenaction-= value;}
}

Using Events

Evenaction+=eventhandlermethod ();

Triggering events

public void Executevent ()
{
if (evenaction!=null)
Evenaction ();
}

3 Comparison Summary

There's no obvious difference except that it's not quite the same in writing.

NET base of the evil complement