![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__TextAnnotationOverlayDefinition.png)
'宣言
Public Class _TextAnnotationOverlayDefinition Inherits GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition(Of ITextGroupOverlayOption) Implements IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface
public class _TextAnnotationOverlayDefinition : GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition<ITextGroupOverlayOption>, IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface
System.Object
GrapeCity.DataVisualization.Chart._BaseOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._TextAnnotationOverlayDefinition