'宣言
Public Class _GcesDonutFlippingDataLabelDefinition Inherits GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition(Of IGCESDonutFlippingDataLabelOption) Implements IDataLabelDefinition, IOverlayDefinition, IQueryInterface
public class _GcesDonutFlippingDataLabelDefinition : GrapeCity.DataVisualization.Chart._BaseDataLabelDefinition<IGCESDonutFlippingDataLabelOption>, IDataLabelDefinition, IOverlayDefinition, IQueryInterface