Visual Basic (Declaration)
C#
Parameters
- layerInfo
- A geography layer to execute query on.
- query
- A query to execute.
- responder
- Async responder to handle query results.
Return Value
True if the query task is started.The query task provider at first validates the geography layer. If this layer doesn't recognized by any query task specified in its list, the false value is returned. Otherwise, an appropriate query task starts executing query and the true value is returned.
An instance of the BATaskEventArgs<FeatureSet>
type is passed to the responder.Result
method.
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family