'宣言
Public Class _ItemizedValuePointLegendItem Inherits _ItemizedPointLegendItemDataModel Implements IColorLegendItem, IItemizedLegendItemDataModel, IItemizedPointLegendItemDataModel, IQueryInterface, IStyleLegendItem, IValueLegendItemDataModel
public class _ItemizedValuePointLegendItem : _ItemizedPointLegendItemDataModel, IColorLegendItem, IItemizedLegendItemDataModel, IItemizedPointLegendItemDataModel, IQueryInterface, IStyleLegendItem, IValueLegendItemDataModel