Session help! 1

[VBakias]

Errr.. hi,

I know that session_start fires when a user loads the wep app. If you refresh it won't fire. It will though if you open a new browser.
At a time limit (default 20 mins) the session_end fires.

What, or when does the application_start and _end fire?


Thnx

 

[checkai]

i believe the first time that app is visited after it's deployed to the server is when application_start fires.

"...we both know I'm training to become a cagefighter...see what happens if you try 'n hit me..."

 

[ITMorpheus]

I Think that:

Application_start is raised immediately after the FIRST application is created, meaning after it's compiled and starts for the first time on the web server. This event occurs only once in the lifecycle of the application.

Application_End is raised before the end of all application instances.

A good example would be: if you need to cache some data you would put the function to cache in application_start...

 

[VBakias]

So If two users open the page we have:
- two session_start to fire
- app_start by the time the first user of the two visits first

and assume that one has left ... or better.. his session
ended because of the time elapsed (timeout in minutes)

- app_end fire when the only one's session time elapses?

If so, then when a new use visites the site, the application_start should fire again, andalso session_start ??

 

[checkai]

no, the application_start will not fire again if a new user visits...

"...we both know I'm training to become a cagefighter...see what happens if you try 'n hit me..."

 

[ITMorpheus]

Not really.
What happens in this scenario is that Application_start will fire as soon as the first user visits the page. As you said, two session_start will fire. However even if the user'session has ended, application_end will not fire. Application end will fire only if the IIS Worker process (or the webserver where the application is hosted) was to be terminated, in other words if the web server is shut down.
Same applies for application_start. It will only fire again if the web server is restarted or something.

So to answer your question, when a new user visits the site, session_start will fire, but application_start will not.
Hope this helps...

 

[VBakias]

If noone is visiting the site, there will be no sessions, right?
If one comes a session will be created but first app_start will fire.

When will the application_start fire again (after the app_end has also fired) ?

 

[ITMorpheus]

If no one is visiting the site there will be no sessions"
I think that's absolutely right.

"If one comes a session will be created but first app_start will fire."
That's right, assuming that the application was just started on the web server.

"When will the application_start fire again (after the app_end has also fired) ?"
In case your web server is restarted or your application is reloaded.

 

[ca8msm]

I suggest you read the following articles from Microsoft for an explanation:

http://msdn.microsoft.com/library/d...en-us/cpguide/html/cpcontheglobalasaxfile.asp

http://msdn.microsoft.com/library/d...frlrfsystemwebhttpapplicationmemberstopic.asp

Also, if you look at your global.asax file, they have some very simple comments on what each event does e.g.

    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when the application is started
    End Sub

    Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when the session is started
    End Sub

    Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires at the beginning of each request
    End Sub

    Sub Application_AuthenticateRequest(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires upon attempting to authenticate the use
    End Sub

    Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when an error occurs
    End Sub

    Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when the session ends
    End Sub

    Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
        ' Fires when the application ends
    End Sub

____________________________________________________________

Need help finding an answer?

Try the Search Facility or read FAQ222-2244 on how to get better results.