'宣言
Public Class _ExcelWaterfallConnectingLineOverlayView Inherits _WaterfallConnectLineOverlayView Implements ICartesianOverlayView, IIdentityView, IModel, IOverlayModel, IOverlayView, IQueryInterface, IView, IViewModel
public class _ExcelWaterfallConnectingLineOverlayView : _WaterfallConnectLineOverlayView, ICartesianOverlayView, IIdentityView, IModel, IOverlayModel, IOverlayView, IQueryInterface, IView, IViewModel