Getting real time data using web services

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;