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c# event : publish and subscribe

Posted on 2014-02-14
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Last Modified: 2016-06-16
I am trying to setup event in the server side, so when request coming, i register an event, and from other places i can subscribe to this event, say certain properties change, i want to raise or execute the event. Is it something possible in asp.net (c#)?  So similar to what JS has, publish an event, and subscribe from diff places.
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Question by:johndenny
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Kyle Abrahams earned 2000 total points
ID: 39860137
Yes you can.

Essentially you can create a class that inherits from a standard control.  

public class MyUserControl : UserControl
{
   //this allows you to "publish" the event
    public delegate void onMyEvent(int AParam);
    public event onMyEvent MyEvent;
 
    public MyUserControl()
    {
          //subscribe to the event
          MyEvent += MyEventHandler;
    }

   // this occurs when the event happens
    public void MyEventHandler(int Param)
    {
                // do something
    }

}
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LVL 41

Expert Comment

by:Kyle Abrahams
ID: 41655414
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