In ASP.NET, each session can be identified by its SessionID variable. Currently, I'm working on a project for which I want to be able to identify each separate user session. In other words, I'm looking for a session identifier or an equivalent variable.
I've looked in the Application, Environment and AppDomain classes, but I couldn't find such a variable. So my question is: how should one identify the session(s) an application is currently handling?
Maybe System.Diagnostics.Process.GetCurrentProcess().Id would cover your needs? That will give you a number that uniquely identifies the currently running process on the system. The number is valid only while the process runs, and when it has quit any other process may be assigned the same number when it is started.
I'm not quite sure I follow you, but if you're trying to track each instance of the application's lifecycle, you could create a GUID as an instance member somewhere appropriate. Whenever you feel a new "session" has been created, you can create and store this GUID - probably when the user logs in (or the main form loads if you don't have a login mechanism).
I'm assuming of course you have a multi-user enviroment with some kind of server attached, otherwise I can't really see a need for sessions.
You could check some of the options in the Environment class such as Environment.UserName, Environment.MachineName or Environment.UserDomainName