How to handle Application_End event from outside global.asax

We can attach to this event from global.asax file creating method with name Application_End(). But I need to attach to it like this

HttpContext.ApplicationInstance.A开发者_开发问答pplicationEnd+=OnApplicationEnd;

Is there any way to do it?

Have solved the problem in such way.

    public class MyHttpApplication:HttpApplication
    {
        public event Action ApplicationEnd;
        protected void Application_End()
        {
            if (ApplicationEnd != null)
               ApplicationEnd();
        } 
    }

In global.asax defined

<%@ Application Inherits="MyLib.MyHttpApplication" Language="C#" %>

Then in code

var app = HttpContext.ApplicationInstance as MyHttpApplication;
app.ApplicationEnd += () => { // do something };

Application_End is a special "event" that is called by Asp.net that doesn't belog to the HttpApplication class.

From MSDN *The Application_Start and Application_End methods are special methods that do not represent HttpApplication events. ASP.NET calls them once for the lifetime of the application domain, not for each HttpApplication instance.*

I think you can have the same behaviour attaching and handler to the AppDomain.DomainUnload event

//your global.asax class contrauctor
public GlobalApplication()
        {

            AppDomain.CurrentDomain.DomainUnload += ApplicationEnd;
        }


        private void ApplicationEnd(object sender, EventArgs e)
        {

        }

I know the answer is already given but wanted to also include this way:

[assembly: PreApplicationStartMethod(typeof(Bootstraper), "Start")]
[assembly: ApplicationShutdownMethod(typeof(Bootstraper), "End")]
public static class Bootstraper
{
    public static void End()
    {
        ...
    }
    public static void Start()
    {
        ...
    }
}