Specifies whether or not a dataset is open.
Use Active to determine or set a dataset's connection to data in a database. When Active is False, the dataset is closed; the dataset cannot read data from the database. When Active is True, data can be read from the database.
An application must set Active to False before changing other properties that affect the status of the dataset.
If an error occurs when setting Active property to True exception is raised and property value is set to False.