public ISqlMapSession CreateSqlMapSession(string connectionString)
        {
            ISqlMapSession session = new SqlMapSession(this);

            session.CreateConnection(connectionString);
            return(session);
        }
        public ISqlMapSession CreateSqlMapSession()
        {
            ISqlMapSession session = new SqlMapSession(this);

            session.CreateConnection();
            return(session);
        }