ArcGIS Developer Help

ILayer Interface

Provides access to members that work with all layers. Note: the ILayer interface has been superseded by ILayer2. Please consider using the more recent version.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Description

ILayer is a generic interface for all layer objects. This interface has a method to draw the layer and provides access to generic layer properties.

Members

	Name	Description
	AreaOfInterest	The default area of interest for the layer.
	Cached	Indicates if the layer needs its own display cache.
	Draw	Draws the layer to the specified display for the given draw phase.
	MaximumScale	Maximum scale (representative fraction) at which the layer will display.
	MinimumScale	Minimum scale (representative fraction) at which the layer will display.
	Name	Layer name.
	ShowTips	Indicates if the layer shows map tips.
	SpatialReference	Spatial reference for the layer.
	SupportedDrawPhases	Supported draw phases.
	TipText	Map tip text at the specified location.
	Valid	Indicates if the layer is currently valid.
	Visible	Indicates if the layer is currently visible.

Classes that implement ILayer

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.
CompositeGraphicsLayer	A collection of graphics layers that behave like single layer.
CoverageAnnotationLayer	An Esri coverage annotation layer.
DimensionLayer	A collection of properties for a dimension layer.
DummyGraduatedMarkerLayer	A dummy layer used to display legend items in the style gallery (Singleton).
DummyLayer	A dummy layer used to display legend items in the style gallery (Singleton).
FDOGraphicsLayer	A collection of properties for an annotation layer (feature data object graphics layer).
FDOGraphicsSublayer	A collection of properties for an annotation sublayer layer (feature data object graphics sublayer).
FeatureLayer	A collection of features and their visual representation.
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.
GraphicsSubLayer	Graphic sublayer handed back by the composite graphics layer.
GroupLayer	A collection of layers that behaves like a single layer.
IMSMapLayer	A container for the display and manipulation of IMS layers.
IMSSubFeatureLayer	A collection of IMS features as a sublayer of an IMSMapLayer.
IMSSubLayer	An IMS Layer as a sublayer of an IMSMapLayer.
JoinedControlPointLayer (esriCadastralUI)	Layer object that represents Control Points.
JoinedLinePointLayer (esriCadastralUI)	Layer object that represents Joined LinePoints.
JoinedParcelLayer (esriCadastralUI)	Layer object that represents Joined Parcels.
JoinedParcelLineLayer (esriCadastralUI)	Layer object that represents Joined Parcel Lines.
JoinedPointLayer (esriCadastralUI)	Layer object that represents Joined Points.
KmlLayer (esriGlobeCore)	Esri KML Layer class.
LasDatasetLayer	The Terrain Layer class.
MapServerBasicSublayer	Provides programmatic access to a basic map server sublayer.
MapServerFindSublayer	Provides programmatic access to a map server sublayer with Find capability.
MapServerIdentifySublayer	Provides programmatic access to a map server sublayer with Identify capability.
MapServerLayer	Provides programmatic access to a map server layer.
MapServerQuerySublayer	Provides programmatic access to a map server sublayer with Find and Identify capability.
MapServerRESTLayer	Provides programmatic access to a a layer based on MapServer using REST access.
MapServerRESTSubLayer	Provides programmatic access to a MapServer SubLayer.
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.
PacketJoinedLayer (esriCadastralUI)	Layer object that represents a packet of Joined Parcels, Lines, Points, Control Points, LinePoints and Text.
ProcessLayer (esriGeoprocessing)	A collection of process layers that behaves like a single layer.
RasterBasemapLayer	Basemap Layer containing a Raster.
SchematicLayer (esriSchematic)	A Schematic layer object.
SearchResultsLayer (esriCatalog)	A layer that lets you preview a search result in the Geography tab. This object is not supported on ArcGIS version 10.1. or later.
TemporalFeatureLayer (esriTrackingAnalyst)	Defines the coclass IDL parameters and attributes of the TemporalFeatureLayer COM object.
TerrainLayer	The Terrain Layer class.
TinLayer	The TIN Layer class.
TopologyLayer	A collection of properties for a topology layer.
WCSLayer	WCS layer source and display options.
WMSGroupLayer	A container for the display of WMS group layers.
WMSLayer	A container for the display of WMS sub layers.
WMSMapLayer	A container for the display and manipulation of WMS layers.
WMTSLayer	Provides programmatic access to WMTS layer.

Remarks

This interface has a method to draw the layer and properties to define the minimum and maximum display scales, the spatial reference, the name, layer visibility, whether or not the layer is cached, and whether or not the layer shows map tips.

There are also properties that indicate whether the layer is valid, its supported draw phases, area of interest, and the map tip text for a given coordinate.

.NET Samples

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