![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__NeedleCartesianLineCoordinateAnnotationOverlayView.png)
'宣言
Public Class _NeedleCartesianLineCoordinateAnnotationOverlayView Inherits _CartesianLineCoordinateAnnotationOverlayView Implements IAnnotationOverlayView, IBoxBounded, ICartesianAnnotationOverlayView, ICartesianOverlayView, IIdentityView, IModel, IOverlayModel, IOverlayRangeBuilder, IOverlayView, IQueryInterface, IView, IViewModel
public class _NeedleCartesianLineCoordinateAnnotationOverlayView : _CartesianLineCoordinateAnnotationOverlayView, IAnnotationOverlayView, IBoxBounded, ICartesianAnnotationOverlayView, ICartesianOverlayView, IIdentityView, IModel, IOverlayModel, IOverlayRangeBuilder, IOverlayView, IQueryInterface, IView, IViewModel
System.Object
GrapeCity.DataVisualization.Chart._BaseView<TOwnerView>
GrapeCity.DataVisualization.Chart._BaseOverlayView<TOwnerView,TDefinition>
GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayView<TPlotView,TDefinition,TItemView>
GrapeCity.DataVisualization.Chart._CartesianAnnotationOverlayView<TPlotView>
GrapeCity.DataVisualization.Chart._CartesianLineCoordinateAnnotationOverlayView
GrapeCity.DataVisualization.Chart._NeedleCartesianLineCoordinateAnnotationOverlayView