public bool setSessionProbertyValue(string sessionName, string userID, string probertyName, string probertyValue)
        {
            SessionState sessionStateDAL = new SessionState();
            bool         check           = false;

            int sessionID = sessionStateDAL.getSessionID(sessionName, userID);

            SessionValue sessionValue = sessionStateDAL.getSessionValue(sessionID, probertyName);

            if (sessionValue == null)
            {
                check = sessionStateDAL.AddSessionProbertyValue(sessionID, probertyName, probertyValue);
            }
            else
            {
                check = sessionStateDAL.alterSerssionProbertyValue(sessionValue, probertyValue);
            }

            return(check);
        }