Getting real time data using web services

[Hari]

I am using following code to get real time data from webservices.
but how do I get results for 2 metrixs displayed at same time
1st Metrix
StatisticObject objectDescription =
            new StatisticObject(tenantName,
                dn,
                StatisticObjectType.RoutePoint);
        StatisticMetric statisticMetric =
            new StatisticMetric("TotalNumberCallsDistrib");
        statisticMetric.TimeProfile = "CollectorDefault";
                Statistic TotalNumberCallsDist =
            new Statistic(objectDescription, statisticMetric);
        StatisticsCollection statisticsCollection =
            new StatisticsCollection();
        statisticsCollection.AddStatistic(TotalNumberCallsDist);
getNotification(statisticsCollection);
        Start 2nd metrix

        StatisticObject objectDescription =
        new StatisticObject(tenantName,
            dn,
            StatisticObjectType.Queue);
        StatisticMetric statisticMetric1 =
            new StatisticMetric("TotalNumberCallsAband");
        statisticMetric1.TimeProfile = "CollectorDefault";
        Statistic inboundCalls1 =
            new Statistic(objectDescription, statisticMetric1);
        StatisticsCollection statisticsCollection1 =
                new StatisticsCollection();
        statisticsCollection1.AddStatistic(inboundCalls1);

getNotification(statisticsCollection1);
For out put as of now I am able to display either of the one Metrix.
by writing

return a.ToString();

and onEvebtpackageInfo
a = statistic.IntValue;