ASP Session_OnStart Event and Session_OnEnd Events

The ASP Session_OnStart Event occurs when the session starts. It occurs when the server creates a session Object. This event is taken place in the Global.asa File.

The ASP Session_OnEnd Event occurs when the session ends or closed. It occurs when the abandoned method is call and when the session Timeout period is over. This event is taken place on the Global.asa File.

Syntax:

<SCRIPT LANGUAGE=ScriptLanguage RUNAT=Server>
Sub Session_OnStart
. . .  
End Sub
</SCRIPT>

Parameter Values:

ScriptLanguage: It defines the Language of the script which is used to write an event script. It supported different scripting languages, such as VBScript or JScript.

Example: Below code used to display the number of visitors in an ASP File.

Global.asa

<script language="vbscript" runat="server"> 

Sub Application_OnEnd() 

Application("totvisitors")=Application("visitors") 

End Sub 

Sub Application_OnStart 

Application("visitors")=0 

End Sub 

Sub Session_OnStart 
Application.Lock 

Application("visitors")=Application("visitors")+1 
Application.UnLock 

End Sub 

Sub Session_OnEnd 
Application.Lock 

Application("visitors")=Application("visitors")-1 
Application.UnLock 

End Sub 

</script>

index.asp

<html> 

<head> 

</head> 

<body> 

<p> 
There are <%response.write(Application("visitors"))%> 
online now! 

</p> 

</body> 

</html>

Output:

There are online now!

Article Tags :

Web Technologies

ASP-Basics