![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__EChartsSmartDataLabelDefinition.png)
'宣言
Public Class _EChartsSmartDataLabelDefinition Inherits GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition(Of IGcesRadialPlotSmartDataLabelOption) Implements IDataLabelDefinition, IOverlayDefinition, IQueryInterface
public class _EChartsSmartDataLabelDefinition : GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition<IGcesRadialPlotSmartDataLabelOption>, IDataLabelDefinition, IOverlayDefinition, IQueryInterface
System.Object
GrapeCity.DataVisualization.Chart._BaseOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition<TOption>
GrapeCity.DataVisualization.Chart._EChartsSmartDataLabelDefinition