![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__ItemsQueryGroupingKeyBuilder.png)
'宣言
Public Class _ItemsQueryGroupingKeyBuilder Implements GrapeCity.DataVisualization.Chart.IDataSlicesGroupingKeyBuilder(Of DataValueType)
public class _ItemsQueryGroupingKeyBuilder : GrapeCity.DataVisualization.Chart.IDataSlicesGroupingKeyBuilder<DataValueType>
System.Object
GrapeCity.DataVisualization.Chart._ItemsQueryGroupingKeyBuilder