Limiting the number of users

[mlawson]

I have an application that will be licenced for use for defined numbers of users. Now we all know that they will buy a 10 user licence and try and have all 397 folk using it. Can I limit the number of active users using the application by either session variables (or poss application variables) or at the database level? All suggestions welcome!

M

 

[link9]

You can set an application level variable that would just be a simple INT

Increment it in session_OnStart

Decrement it in session_OnEnd

Check the value each time a user logs in.

You can declare it in the application_OnStart subprocedure.

All these events are subs in global.asa of your project.

lemme know if you need more detail.
paul

 

[derren]

Hi

You sure can! Crack open your Global.asa file and keep track of the number of people currently using your application by using the

Session_OnStart

event and the

Session_OnEnd

event. Like this

Sub Session_Onstart
Application.Lock
Application("numusers") = Application("numusers") + 1
Application.Unlock
End Sub

Sub Session_OnEnd
Application.Lock
Application("numusers") = Application("numusers") - 1
Application.Unlock
End Sub

We can go into this more if necessary.

Be sure you add a cursory application variable check at the beginning of all of your pages:

If Application("numusers")>10 then
   redirect to a page with a finger wagging at them!
   response.end
End if

That'll upset the heck out of them!

Derren
[The only person in the world to like Word]

 

[derren]

D'oh!

Now I know what it's like to be usurped! Derren
[The only person in the world to like Word]

 

[mlawson]

Thanks guys, I'll give these a go. I liked the option proposed by Derren, it's always good to put the frighteners up the perps, so I'll think up something that's suitably scary (maybe a picture of Anne Robinson "weakest link" ??).

I'll get back once I've got my teeth into it.

M