'宣言
Public Class _NativeDataLabelDefinition Inherits GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition(Of IPlotConfigTextOption) Implements IDataLabelDefinition, INativeDataLabelDefinition, IOverlayDefinition, IQueryInterface
public class _NativeDataLabelDefinition : GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition<IPlotConfigTextOption>, IDataLabelDefinition, INativeDataLabelDefinition, IOverlayDefinition, IQueryInterface