Provides access to the extensions of a layer.
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Members
| Description | ||
|---|---|---|
 |
AddExtension | Adds a new extension. |
 |
Extension | The extension at the specified index. |
|
ExtensionCount | Number of extensions. |
|
RemoveExtension | Removes the specified extension. |
CoClasses that implement ILayerExtensions
| CoClasses and Classes | Description |
|---|---|
| BasemapLayer | Layer containing a Basemap. |
| CadAnnotationLayer | An Esri Cad annotation layer. |
| CadastralFabricLayer | Cadastral Fabric Layer Object. |
| CadastralFabricSubLayer | Cadastral Fabric Feature Layer Object. |
| CadFeatureLayer | Esri CAD Feature Layer class. |
| CadLayer | Esri CAD Layer class. |
| CoverageAnnotationLayer | An Esri coverage annotation layer. |
| DimensionLayer | A collection of properties for a dimension layer. |
| FDOGraphicsLayer | A collection of properties for an annotation layer (feature data object graphics layer). |
| FeatureLayer | A collection of features and their visual representation. |
| ForceElementLayer (esriDefenseSolutions) | A custom layer, bound to a feature layer, that wraps a force element display list and makes it possible to view and manipulate its cached graphic contents in an ArcGIS map display. |
| GdbRasterCatalogLayer | Geodabase RasterCatalog source and display options. |
| GeoVideoLayer (esriGlobeCore) | The georeferenced video layer. |
| GlobeGraphicsLayer (esriGlobeCore) | The Globe Graphics Layer. |
| GlobeLayer (esriGlobeCore) | The cache-only globe layer. |
| GlobeServerLayer (esriGlobeCore) | Provides programmatic access to a globe server layer. |
| GraphicsLayer3D (esri3DAnalyst) | A 3D Graphics Layer. |
| GroupLayer | A collection of layers that behaves like a single layer. |
| ImageServerLayer | Image server layer source and display options. |
| IMSMapLayer | A container for the display and manipulation of IMS layers. |
| KmlLayer (esriGlobeCore) | Esri KML Layer class. |
| LasDatasetLayer | The Terrain Layer class. |
| MADtedLayer (esriDefenseSolutions) | A layer used to control the display of MA DTED Catalogs. |
| MapServerLayer | Provides programmatic access to a map server layer. |
| MapServerRESTLayer | Provides programmatic access to a a layer based on MapServer using REST access. |
| MapServerRESTSubLayer | Provides programmatic access to a MapServer SubLayer. |
| MARasterLayer (esriDefenseSolutions) | A layer used to control the display of MA RPF Catalogs. |
| MosaicLayer | The layer implementation of the Mosaic Dataset. |
| NALayer (esriNetworkAnalyst) | The layer for defining, solving, and viewing network analysis results. |
| NetworkLayer | Esri Network Layer CoClass. |
| ProcessLayer (esriGeoprocessing) | A collection of process layers that behaves like a single layer. |
| RasterCatalogLayer | Raster catalog source and display options. |
| RasterLayer | Raster layer source and display options. |
| TacticalGraphicLayer (esriDefenseSolutions) | A custom layer, bound to a feature layer, that wraps a tactical graphic display list and makes it possible to view and manipulate its cached graphic contents in an ArcGIS map display. |
| TemporalFeatureLayer (esriTrackingAnalyst) | Defines the coclass IDL parameters and attributes of the TemporalFeatureLayer COM object. |
| TerrainLayer | The Terrain Layer class. |
| TinLayer | The TIN Layer class. |
| WCSLayer | WCS layer source and display options. |
| WMSMapLayer | A container for the display and manipulation of WMS layers. |
| WMTSLayer | Provides programmatic access to WMTS layer. |
Remarks
Use this interface to manage a layer's extensions. Extensions extend a layer's behavior.
There are several ESRI layer extensions. One set implements ILayerExtensionDraw. These coclasses store information that is used to display linearly referenced data layers. Another set of ESRI layer extensions implement IDataLayerExtension. These coclasses store information that is used to display 3D data layers in ArcScene and ArcGlobe. Another set implements IFeatureLayerSourcePageExtension. These coclasses control special dialogs for setting a feature layer's data source. Layer extensions need to implement IPersistStream to be persisted in the layer/map.