'宣言
Public Class _SmartDataLabelOverlayView Inherits GrapeCity.DataVisualization.Chart._BaseOverlayView(Of ICartesianPlotView,IDataLabelDefinition) Implements IIdentityView, IModel, IOverlayModel, IOverlayView, IQueryInterface, IView, IViewModel
public class _SmartDataLabelOverlayView : GrapeCity.DataVisualization.Chart._BaseOverlayView<ICartesianPlotView,IDataLabelDefinition>, IIdentityView, IModel, IOverlayModel, IOverlayView, IQueryInterface, IView, IViewModel