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ASP Global.asa

The Global.asa file in ASP is a special file used to define application-level and session-level events. It allows you to initialize and clean up resources when an application or session starts or ends.

Key Topics

Application Events

Example

<!-- Global.asa -->
<SCRIPT LANGUAGE="VBScript" RUNAT="Server">
Sub Application_OnStart
    Application("TotalUsers") = 0
End Sub

Sub Application_OnEnd
    ' Clean up resources if needed
End Sub
</SCRIPT>

Explanation: The Application_OnStart event initializes the TotalUsers variable when the application starts, providing a global resource for all users.

Session Events

Example

<!-- Global.asa -->
<SCRIPT LANGUAGE="VBScript" RUNAT="Server">
Sub Session_OnStart
    Application("TotalUsers") = Application("TotalUsers") + 1
End Sub

Sub Session_OnEnd
    Application("TotalUsers") = Application("TotalUsers") - 1
End Sub
</SCRIPT>

Explanation: The Session_OnStart and Session_OnEnd events update the total number of active users when a session begins or ends.

Key Takeaways

  • The Global.asa file handles application and session-level events.
  • Use Application_OnStart to initialize global variables or settings.
  • Manage user sessions dynamically with Session_OnStart and Session_OnEnd.
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