'宣言
Public MustInherit Class _DataPointItemizedLegendDataModel Inherits _ItemizedLegendDataModel Implements IColorLegend, IDataPointItemizedLegendDataModel, IItemizedLegendDataModel, ILegendDataModel, IQueryInterface, ISingleLegendDataModel
public abstract class _DataPointItemizedLegendDataModel : _ItemizedLegendDataModel, IColorLegend, IDataPointItemizedLegendDataModel, IItemizedLegendDataModel, ILegendDataModel, IQueryInterface, ISingleLegendDataModel