'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