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Layer Class
This is the base class for all geographic data that can be added to the MapView Control.
Inheritance Hierarchy

Namespace: Esri.ArcGISRuntime.Layers
Assembly: Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version: 10.2.7.0 (10.2.7.1234)
Syntax
public abstract class Layer : DependencyObject, 
	INotifyPropertyChanged

The Layer type exposes the following members.

Methods
  NameDescription
Public methodCheckAccess
Determines whether the calling thread has access to this DispatcherObject.
(Inherited from DispatcherObject.)
Public methodClearValue(DependencyProperty)
Clears the local value of a property. The property to be cleared is specified by a DependencyProperty identifier.
(Inherited from DependencyObject.)
Public methodClearValue(DependencyPropertyKey)
Clears the local value of a read-only property. The property to be cleared is specified by a DependencyPropertyKey.
(Inherited from DependencyObject.)
Public methodCoerceValue
Coerces the value of the specified dependency property. This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject.
(Inherited from DependencyObject.)
Public methodEquals
Determines whether a provided DependencyObject is equivalent to the current DependencyObject.
(Inherited from DependencyObject.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Gets a hash code for this DependencyObject.
(Inherited from DependencyObject.)
Public methodGetLocalValueEnumerator
Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject.
(Inherited from DependencyObject.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetValue
Returns the current effective value of a dependency property on this instance of a DependencyObject.
(Inherited from DependencyObject.)
Public methodCode exampleInitializeAsync
Loads the metadata for this layer based on the current configuration.
Public methodInvalidateProperty
Re-evaluates the effective value for the specified dependency property
(Inherited from DependencyObject.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Protected methodOnPropertyChanged(DependencyPropertyChangedEventArgs)
Invoked whenever the effective value of any dependency property on this DependencyObject has been updated. The specific dependency property that changed is reported in the event data.
(Inherited from DependencyObject.)
Protected methodOnPropertyChanged(String)
Notifies listeners that a property value has changed.
Public methodReadLocalValue
Returns the local value of a dependency property, if it exists.
(Inherited from DependencyObject.)
Public methodSetCurrentValue
Sets the value of a dependency property without changing its value source.
(Inherited from DependencyObject.)
Protected methodSetLayerInitializationFailed
status must be failed - if not throw
Protected methodSetLayerStatus
Status cannot be failed or it will throw. To set Status to LayerStatus.Failed, call SetLayerInitializationFailed.
Public methodSetValue(DependencyProperty, Object)
Sets the local value of a dependency property, specified by its dependency property identifier.
(Inherited from DependencyObject.)
Public methodSetValue(DependencyPropertyKey, Object)
Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property.
(Inherited from DependencyObject.)
Protected methodShouldSerializeProperty
Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.
(Inherited from DependencyObject.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodVerifyAccess
Enforces that the calling thread has access to this DispatcherObject.
(Inherited from DispatcherObject.)
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Fields
  NameDescription
Public fieldStatic memberDisplayNameProperty
Identifies the DisplayName Dependency Property
Public fieldStatic memberIsVisibleProperty
Identifies the IsVisible Dependency Property
Public fieldStatic memberMaxScaleProperty
Identifies the MaxScale Dependency Property
Public fieldStatic memberMinScaleProperty
Identifies the MinScale Dependency Property
Public fieldStatic memberOpacityProperty
Identifies the Opacity Dependency Property
Public fieldStatic memberShowLegendProperty
Identifies the ShowLegend Dependency Property
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Properties
  NameDescription
Public propertyDefaultSpatialReference
Gets the default spatial reference.
Public propertyDependencyObjectType
Gets the DependencyObjectType that wraps the CLR type of this instance. 
(Inherited from DependencyObject.)
Public propertyDispatcher
Gets the Dispatcher this DispatcherObject is associated with.
(Inherited from DispatcherObject.)
Public propertyDisplayName
Gets or sets the display name.
Public propertyFullExtent
Gets the full extent of the layer in it's default spatial reference.
Public propertyID
Gets or sets an ID associated with this layer.
Public propertyInitializationException
Gets the initialization exception.
Public propertyIsSealed
Gets a value that indicates whether this instance is currently sealed (read-only).
(Inherited from DependencyObject.)
Public propertyIsVisible
Gets or sets the layer visibility.
Public propertyMaxScale
Gets or sets the maximum scale to display this layer at. A small number allows the map to display the layer when zooming further in.
Public propertyMinScale
Gets or sets the minimum scale to render this layer at. A large number allows the map to display the layer when zooming further out.
Public propertyOpacity
Gets or sets the opacity.
Public propertyShowLegend
Gets or sets a value indicating whether this layer should show in a legend
Public propertyStatus
The Layer's Status, indicating whether it is being/has been initialized, or initialization failed.
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Events
  NameDescription
Public eventPropertyChanged
Occurs when a property value changes.
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Remarks

A Layer is a representation of geographic data portrayed using symbols and text labels. Multiple Layers can be ‘stacked’ on top of each other to enhance the information displayed for making meaningful decisions. Layers are displayed visually in the Map Control. Layers are drawn bottom to top so the first one in the LayerCollection is drawn first (on the bottom) and each subsequent layer is drawn on top of it, in the order listed.

The first Layer with a valid SpatialReference defines the Map.SpatialReference.

See Also
Inheritance Hierarchy
SystemObject
  System.Windows.ThreadingDispatcherObject
    System.WindowsDependencyObject
      Esri.ArcGISRuntime.LayersLayer
        Esri.ArcGISRuntime.HydrographicHydrographicS57Layer
        Esri.ArcGISRuntime.LayersArcGISLocalTiledLayer
        Esri.ArcGISRuntime.LayersDynamicLayer
        Esri.ArcGISRuntime.LayersFeatureLayer
        Esri.ArcGISRuntime.LayersGraphicsLayer
        Esri.ArcGISRuntime.LayersGroupLayer
        Esri.ArcGISRuntime.LayersKmlLayer
        Esri.ArcGISRuntime.LayersSceneLayer
        Esri.ArcGISRuntime.LayersTiledLayer
        Esri.ArcGISRuntime.Symbology.SpecializedMessageSubLayer
Supported Platforms
This type is supported on the following ArcGIS Runtime .NET SDK platforms:
Windows Desktop
Windows Phone
Windows Store
Additional Examples
Hyperlink to ExampleDescription
AllLayersServiceInfo_FeatureServiceLayerInfoDemonstrates getting detailed ArcGIS Server MapServer metadata for various ArcGISDynamicMapServiceLayer and ArcGISTiledMapServiceLayer web services.
ArcGISDynamicMapServiceLayer_GetDetailsShows adding an ArcGISDynamicMapServiceLayer with a LayerDefinition applied (discovered by the ArcGISDynamicMapServiceLayer.GetDetailsAsync Method) and then modifying the LayerDefinition to change the features returned.
ArcGISDynamicMapServiceLayer_VisibleLayersShows obtaining which sub-layers are visible using the ArcGISDynamicMapServiceLayer.GetAllDetailsAsync Method. Then the user can interact with application and change the VisibleLayers of the ArcGISDynamicMapServiceLayer.
ArcGISDynamicMapServiceLayerImageFormatShows changing the return ImageFormat for ArcGISDynamicMapServiceLayer and how that appears visually in the Map.
ArcGISImageServiceLayerWindowShows creating an ArcGIS Image Service Layer and applying rendering rules.
BingLayer_AdvancedTeaches one method (advanced) for using the Microsoft WebClient and a DataContract to poll a Microsoft Bing development server to determine if a Bing Key is correct and then loading multiple BingLayer's into the Map and allowing the user to switch between various BingLayer.MapStyles.
Camera_SetMethodsDemonstrates navigating/animating between MapPoint Graphics with a Camera. Simultaneous changes of X, Y, Z, Pitch, and Heading during the animation is shown.
CreateDynamicLayerInfosFromLayerInfosDemonstrates applying a custom rendering via XAML using the Dynamic Layer option of an ArcGISDynamicMapServiceLayer. Also, shows how to use the ArcGISDynamicMapServiceLayer.CreateDynamicLayerInfosFromLayerInfos Method to obtain the original rendering of the layer that was defined in the map service. The CreateDynamicLayerInfosFromLayerInfos is then used to reset the layer back to orignal rendering.
Editor_SketchingDemonstrates sketching various geometric shapes on the map via the Editor.RequestShapeAsync method. The sketches are then added as Graphics in a GraphicsLayer and drawn on the map.
EditorConfigurationDemonstrates sketching Polyline shapes on the map via the Editor.RequestShapeAsync method. The sketches are then added as Graphics in a GraphicsLayer and drawn on the map. Multiple versions of customizing the symbology of the Editor are shown.
EqualGeometriesDemonstrates the differences in comparing a few polygon geometries to via the Geometry.IsEqual and GeometryEngine.Equals Methods.
FeatureServiceLayerInfo_CopyrightTextDemonstrates using the GetDetailsAsync Method to obtain the FeatureServiceLayerInfo.CopyrightText on an ArcGISDynamicMapServiceLayer.
FindTaskDemonstrates using the Query.FindTask operation to search for text in attribute fields of an ArcGIS Server map service and display the features found as graphics in a GraphicsLayer.
GeocodeFullAddressInputDemonstrates performing a geocode by submitting values for multiple address fields.
GeocodeSingleLineInputPerforms a single line geocode using either an online ArcGIS Locator service or a local Locator.
GeoRSSLayerWindowCreates a GeoRssLayer based on the United States Geological Survey earthquake feed and assigned a SimpleRenderer.
GetAreaAllows the user to draw a polygon on the map and calculate the area via several methods.
GraphicsLayer_LabelingDemonstrates labeling city names where two AttributeLabelClass'es are used (one for smaller cities and one for larger ones).
GraphicsLayerWindowDemonstrates various Graphics and GraphicsLayer related actions.
IdentifyParameter_DynamicLayerInfosDemonstrates performing an Identify on a Dynamic Layer using the ESRI.ArcGISRuntime.Tasks.Query.IdentifyParameter.DynamicLayerInfos Property.
IdentifyTaskDemonstrates using the Query.IdentifyTask operation find a feature based upon it's geographic position in an ArcGIS Server map service and display it as a graphic in a GraphicsLayer.
LayerDefinitionsDemonstrates setting numerous LayerDefinitions values on an ArcGISDynamicMapServiceLayer and visualizing the impact of the features being returned in the Map.
LayerDrawingOptionCollectionDemonstrates using the existing rendering of a Dynamic Layer sub-layer of an ArcGISDynamicMapServiceLayer and switching to a custom rendering defined in code-behind for the Dynamic Layer.
LayerDrawingOptionsDemonstrates changing the rendering of the first sub-layer of an ArcGISDynamicMapServiceLayer using the Dynamic Layer capabilities of ArcGIS Server 10.1 and higher.
LayersInitializedDemonstrates implementing logic which is dependent on the layer collection being initialized.
MapServiceInfo_DocumentInfo_LayerServiceInfoDemonstrates getting detailed ArcGIS Server MapServer metadata to obtain MapServiceInfo data for various ArcGISDynamicMapServiceLayer and ArcGISTiledMapServiceLayer web services.
Mapview_LayerLoadedDemonstrates how to determine if a particular layer has loaded via the MapView.LayerLoaded Event.
PictureFillSymbolDemonstrates the using a SimpleRenderer with options for PictureFillSymbol.
PictureMarkerSymbolDemonstrates the using a SimpleRenderer with options for SimpleMarkerSymbol, PictureMarkerSymbol, and TextMarkerSymbol.
PolygonBuilder_MakeIslandsShows how to use the PolygonBuilder to turn multiple independent Polygons into a single Polygon (use case: grouping island Polygons together into one record).
RoutingPointToPointDemonstrates simple point to point routing between two input locations.
RoutingWithBarriersShows routing and re-routing around user defined point, polyline, and polygon barriers.
RoutingWithDirectionsInteraction logic for RoutingWithDirections.xaml