Identify features also support FeatureCollectionLayer

Question

Does IdentifyLayerAsync Method also support FeatureCollectionLayer? https://developers.arcgis.com/net/latest/forms/guide/identify-features.htm https://developers.arcgis.com/net/latest/ios/api-reference//html/T_Esri_ArcGISRuntime_Mapping_FeatureCollectionLayer.htm The GeoElement list is empty. var layer = MyMapView.Map.OperationalLayers[0]; var pixelTolerance = 20; var returnPopupsOnly = true; var maxResults = 1; var idResults = await MyMapView.IdentifyLayerAsync(layer, e.Position, pixelTolerance, returnPopupsOnly, maxResults); foreach (GeoElement idElement in idResults.GeoElements) { Feature idFeature = idElement as Feature; //idLayer.SelectFeature(idFeature); } FeatureCollectionLayer idLayer = idResults.LayerContent as FeatureCollectionLayer; FeatureCollectionTable tables = (idLayer.FeatureCollection.Tables).FirstOrDefault(); var fields = tables.LayerInfo.Fields;‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

takahiro_kamiya · Answer

Hello Morten,

Thank you for the information.

var layer = MyMapView.Map.OperationalLayers[0];

var idResults = await MyMapView.IdentifyLayerAsync(layer, e.Position, pixelTolerance, returnPopupsOnly, maxResults);

We were able to get elements of GeoElements from idResults.SublayerResults.

Thank you very much!

SomeGISGuy · Answer

...actually did you look at the idResults.SublayerResults ? Come to think of it, your geoelements might just be in there.

SomeGISGuy · Answer

The FeatureCollectionLayer is a group layer of FeatureLayers, so instead parse in the layers inside the collection. Ie

var sublayer = ((FeatureCollectionLayer)layer).Layers[0];

var idResults = await MyMapView.IdentifyLayerAsync(sublayer, e.Position, pixelTolerance, returnPopupsOnly, maxResults);