'宣言
Public Class _RootHierarchicalPointDataModel Inherits _BaseHierarchicalPointDataModel Implements IBaseHierarchicalPointDataModel, IDataModel, GrapeCity.DataVisualization.Chart.IGrouping(Of DataValueType), IPointDataModel, IQueryInterface, IRootHierarchicalPointDataModel, GrapeCity.DataVisualization.Chart.ITreeNode(Of IBaseHierarchicalPointDataModel)
public class _RootHierarchicalPointDataModel : _BaseHierarchicalPointDataModel, IBaseHierarchicalPointDataModel, IDataModel, GrapeCity.DataVisualization.Chart.IGrouping<DataValueType>, IPointDataModel, IQueryInterface, IRootHierarchicalPointDataModel, GrapeCity.DataVisualization.Chart.ITreeNode<IBaseHierarchicalPointDataModel>