![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart__BarLineOverlayDefinition.png)
'宣言
Public Class _BarLineOverlayDefinition Inherits GrapeCity.DataVisualization.Chart._BaseOverlayDefinition(Of IBarLineOverlayOption) Implements IBarLineOverlayDefinition, IOverlayDefinition, IQueryInterface
public class _BarLineOverlayDefinition : GrapeCity.DataVisualization.Chart._BaseOverlayDefinition<IBarLineOverlayOption>, IBarLineOverlayDefinition, IOverlayDefinition, IQueryInterface
System.Object
GrapeCity.DataVisualization.Chart._BaseOverlayDefinition<TOption>
GrapeCity.DataVisualization.Chart._BarLineOverlayDefinition