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GenerateOfflineMapParameterOverridesOnlineLayers Property

Gets a mutable list of layers that will not be taken offline and will continue to reference online services.

Namespace:  Esri.ArcGISRuntime.Tasks.Offline
Assembly:  Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version: 100.11.0
public IList<Layer> OnlineLayers { get; }

Property Value

Type: IListLayer

In some situations, you may wish to prevent a layer from being taken offline even though it is supported. For example, by continuing to reference the live online service for a FeatureLayer, you can benefit from the most up-to-date information. You can choose to keep layers from the map's operational layers or basemap layers collections online.

To make the offline map continue to reference an online layer add it to the OnlineLayers collection. By adding a Layer to this list, you indicate that the layer will not be taken offline but will instead continue to reference the online service. Be aware that the resulting offline map will require a network connection and may also require authentication.

Note that if a Layer is included in this collection it will not be taken offline - you should update the relevant parameters to remove the details pertaining to that layer:

If a feature service contains many tables in the web map, you can choose to keep specific layers online by adding them to the OnlineLayers collection and updating the GenerateGeodatabaseParameters to remove the specific layers. Any remaining feature layers or stand-alone tables that you wish to take offline can be configured using the LayerOptions for the service in GenerateGeodatabaseParameters.

When you create a GenerateOfflineMapParameterOverrides object, this collection will be populated according to the OnlineOnlyServicesOption setting in the original parameters.

See Also