topic Re: Get layer name from clicking on layer feature in ArcGIS JavaScript Maps SDK Questions

Get layer name from clicking on layer feature

Jackson_CountyMissouri — Thu, 22 Jun 2023 16:00:02 GMT

I have a web map with multiple feature layers loaded in it. I need the user to click on a specific layer, though I can never be sure which other layers they may or may not have turned on. I need to extract some info from the one particular layer, but because it might not be the top layer I can't always be sure it's going to be the zeroth layer they clicked on. So I'm thinking if I could get the layer name(s) that were clicked on I could then get the index of the correct layer and extract my info from there. The problem is I can't find anything in the API for hitTest or FeatureLayer or anywhere else that tells me how I can get the layer name.

Re: Get layer name from clicking on layer feature

UndralBatsukh — Thu, 22 Jun 2023 16:07:09 GMT

response.results[i].layer - will return the layer the feature belongs to and you can get the layer title from there.

Hittest returns ViewHit results: https://developers.arcgis.com/javascript/latest/api-reference/esri-views-MapView.html#ViewHit

If you are working with features from a layer then your view hit result is graphic hit and graphic hit returns the layer to which the feature belongs to: https://developers.arcgis.com/javascript/latest/api-reference/esri-views-MapView.html#GraphicHit

Re: Get layer name from clicking on layer feature

Jackson_CountyMissouri — Thu, 22 Jun 2023 16:17:06 GMT

Thanks, but when I do that it just returns "[object Object]"

Re: Get layer name from clicking on layer feature

UndralBatsukh — Thu, 22 Jun 2023 16:26:39 GMT

Yes it will return layer object... FeatureLayer has name property so to get the name you do

response.results[i].layer.name

Take a look at the FeatureLayer properties from here: https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#properties-summary

Re: Get layer name from clicking on layer feature

Jackson_CountyMissouri — Thu, 22 Jun 2023 16:29:48 GMT

Thanks! But the correct solution was to use response.results[i].layer.title, not name.