'宣言 Public Class DataSourceLocalDataProvider Implements IDataSourceClonableDataProvider, IDataSourceDataProvider, IDataSourceLocalDataProvider, IDataSourceSupportsCount, IDataSourceSupportsIndexedAccess, ISupportsDataChangeNotifications
public class DataSourceLocalDataProvider : IDataSourceClonableDataProvider, IDataSourceDataProvider, IDataSourceLocalDataProvider, IDataSourceSupportsCount, IDataSourceSupportsIndexedAccess, ISupportsDataChangeNotifications