'宣言 Public Class VirtualDataSource Inherits BaseDataSource Implements IDataSource, IDataSourceSupportsCount, IDataSourceSupportsIndexedAccess, IEditableDataSource, ISupportsDataChangeNotifications
public class VirtualDataSource : BaseDataSource, IDataSource, IDataSourceSupportsCount, IDataSourceSupportsIndexedAccess, IEditableDataSource, ISupportsDataChangeNotifications