gistfile1.cs

        private string GetManufacturer(string MacAddress)
        {
            using (ISession session = Global._DatabaseConn.OpenSession())
            {
                using (ITransaction transaction = session.BeginTransaction())
                {
                    string strManuFacturer = "N/A";
                    var OID = session.Query<normutils.data.Entities.MACIdentifier>();
                    var Type = (from t in OID
                                where t.ID == MacAddress.Substring(0,8)
                                select t.Name);
                    try
                    {
                        strManuFacturer = Type.ToString();
                    }
                    catch (Exception ex)
                    {
                    }
                    return strManuFacturer;
                }
            }
        }

    }