'宣言 Public Class NullableInt32SumAggregator Inherits Infragistics.Olap.Aggregator(Of Nullable(Of Integer)) Implements IAggregator, Infragistics.Olap.IAggregator(Of Nullable(Of Integer)), Infragistics.Olap.IAggregator(Of Nullable(Of Integer),Nullable(Of Integer),Nullable(Of Integer))
public class NullableInt32SumAggregator : Infragistics.Olap.Aggregator<Nullable<int>>, IAggregator, Infragistics.Olap.IAggregator<Nullable<int>>, Infragistics.Olap.IAggregator<Nullable<int>,Nullable<int>,Nullable<int>>