Timeout is important session state setting in the web.config file. It specifies the number of minutes that ASP.NET will wait, without receiving a request, before it abandons the session.
<?xml version=”1.0” encoding=”utf-8” ?>
<!— other settings are omitted. —>
sqlConnectionString=”data source=127.0.0.1;Integrated Security=SSPI”
This parameter is one of the most important, because a difference of minutes can have an impressive effect on the load of the web server and performance of the web application. Ideally, software developer should choose a timeframe that is short enough to allow the server to recover valuable memory after a client stops using the application but long enough to allow a client to pause and continue session without losing it.
Software developer can also programmatically change the session timeout in code:
Session.Timeout = 15;