'宣言
Public Class _RadialGradientOption Inherits _Option Implements GrapeCity.DataVisualization.Chart.IOptionStrictMode, IColorOption, IOption, IRadialGradientOption
public class _RadialGradientOption : _Option, GrapeCity.DataVisualization.Chart.IOptionStrictMode, IColorOption, IOption, IRadialGradientOption