'宣言
Public NotInheritable Class PlaneItem Inherits MouseEnabledItem Implements GrapeCity.ActiveReports.Chart.Graphics.IMouseHandler, ICustomDrawer, IGraphItem, IGraphXmlSerializable, IMouseEnabled
public sealed class PlaneItem : MouseEnabledItem, GrapeCity.ActiveReports.Chart.Graphics.IMouseHandler, ICustomDrawer, IGraphItem, IGraphXmlSerializable, IMouseEnabled