'宣言
Public Class _TrendlineOverlayOption Inherits _OverlayOption Implements GrapeCity.DataVisualization.Chart.IOptionStrictMode, IJsonOption, IOption, IOverlayOption, ITrendlineOverlayOption
public class _TrendlineOverlayOption : _OverlayOption, GrapeCity.DataVisualization.Chart.IOptionStrictMode, IJsonOption, IOption, IOverlayOption, ITrendlineOverlayOption