![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__BaseAnnotationOverlayDefinition`1.png)
'宣言
Public MustInherit Class _BaseAnnotationOverlayDefinition(Of TOption As IAnnotationOverlayOption) Inherits _BaseOverlayDefinition(Of TOption) Implements IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface
public abstract class _BaseAnnotationOverlayDefinition<TOption> : _BaseOverlayDefinition<TOption>, IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface where TOption: IAnnotationOverlayOption
System.Object
GrapeCity.DataVisualization.Chart._BaseOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._EllipseAnnotationDefinition
GrapeCity.DataVisualization.Chart._ImageAnnotationDefinition
GrapeCity.DataVisualization.Chart._LineAnnotationDefinition
GrapeCity.DataVisualization.Chart._PathAnnotationDefinition
GrapeCity.DataVisualization.Chart._RectangleAnnotationDefinition
GrapeCity.DataVisualization.Chart._TextAnnotationOverlayDefinition