![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__SankeyGroupingKeyBuilder.png)
'宣言
Public Class _SankeyGroupingKeyBuilder Implements GrapeCity.DataVisualization.Chart.IGroupingKeyBuilder(Of ISankeyGroupingKey)
public class _SankeyGroupingKeyBuilder : GrapeCity.DataVisualization.Chart.IGroupingKeyBuilder<ISankeyGroupingKey>
System.Object
GrapeCity.DataVisualization.Chart._SankeyGroupingKeyBuilder