'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