Hi JB,
I think you will need to rethink your plan. There is a reason that Sessions
time out. Each Session has a certain amount of memory overhead associated
with it. If Sessions never time out, you've created a custom Memory Leak in
your app. Every time a Session is initiated, it adds to the memory overhead.
And with no way to remove a Session, the memory overhead keeps building
until your system is out of memory.
The reason that Sessions time out is that HTTP is stateless. Each Request
happens "in a vacuum" so to speak. The server has no way of knowing whether
or not the client is even there until it receives a Request. SessionState
was created to emulate statefullness for a given client. It (generally, by
default) creates a Session cookie on the client, which is sent with each
Request, identifying the Session (Memory block) that belongs to that client.
Once the client stops sending Requests, the Session kills itself after the
Timeout interval. The lack of Requests is the only way the server-side app
can know that the client has "gone away" so to speak.
There are methods you can employ to prevent Sessions timing out between
Requests, such as using a META Refresh tag on the client to re-Request the
page after an interval of < Session Timeout. Once the user navigates away
from the page, or closes their browser, it stops sending fresh Requests, and
the Server Session for that client times out and kills itself. Of course,
there are times when you don't want to send a fresh Request for the page, as
it may be in an "internediate" state (between PostBacks). In a case such as
that, you would use PostBacks to refresh the Session. This can be done using
client-side JavaScript and the JavaScript setTimeout() function.
--
HTH,
Kevin Spencer
Microsoft MVP
..Net Developer
What You Seek Is What You Get.
"jensen bredal" <je***********@yahoo.dk> wrote in message
news:O8*************@TK2MSFTNGP15.phx.gbl...
I need to keep track on user "session data" while still turning session
off as
i do not want users login to expire?
Thanks
JB