'宣言 Public Class CountAggregator Inherits Infragistics.Olap.Aggregator(Of Long) Implements IAggregator, Infragistics.Olap.IAggregator(Of Long), Infragistics.Olap.IAggregator(Of Long,Long,Long)
public class CountAggregator : Infragistics.Olap.Aggregator<long>, IAggregator, Infragistics.Olap.IAggregator<long>, Infragistics.Olap.IAggregator<long,long,long>