'宣言 Public Class VirtualDataSource Inherits BaseDataSource Implements Infragistics.Win.DataVisualization.DataSource.IDataSource, Infragistics.Win.DataVisualization.DataSource.IDataSourceSupportsCount, Infragistics.Win.DataVisualization.DataSource.IDataSourceSupportsIndexedAccess, Infragistics.Win.DataVisualization.DataSource.IEditableDataSource, Infragistics.Win.DataVisualization.DataSource.ISupportsDataChangeNotifications
public class VirtualDataSource : BaseDataSource, Infragistics.Win.DataVisualization.DataSource.IDataSource, Infragistics.Win.DataVisualization.DataSource.IDataSourceSupportsCount, Infragistics.Win.DataVisualization.DataSource.IDataSourceSupportsIndexedAccess, Infragistics.Win.DataVisualization.DataSource.IEditableDataSource, Infragistics.Win.DataVisualization.DataSource.ISupportsDataChangeNotifications