'宣言 Public Class NullableFloatSumAggregator Inherits Infragistics.Olap.Aggregator(Of Nullable(Of Single)) Implements IAggregator, Infragistics.Olap.IAggregator(Of Nullable(Of Single)), Infragistics.Olap.IAggregator(Of Nullable(Of Single),Nullable(Of Single),Nullable(Of Single))
public class NullableFloatSumAggregator : Infragistics.Olap.Aggregator<Nullable<float>>, IAggregator, Infragistics.Olap.IAggregator<Nullable<float>>, Infragistics.Olap.IAggregator<Nullable<float>,Nullable<float>,Nullable<float>>