Cancels the current session.
Assembly: System.Web (in System.Web.dll)
Session identifiers for abandoned or expired sessions are recycled by default. That is, if a request is made that includes the session identifier for an expired or abandoned session, a new session is started using the same session identifier. You can disable this by setting regenerateExpiredSessionId attribute of the sessionState configuration element to true. For more information, see Session Identifiers.