topic Re: Multiple layers selection in ArcGIS JavaScript Maps SDK Questions

Multiple layers selection

Vakhtang_Zubiashvili — Thu, 26 Aug 2021 09:54:37 GMT

Hello guys,

Here is what i try now to do: i want to select multiple layers e.g. by rectangle, i use this sample to select features, but how to do with multiple layers i do not know.

Just need to select multiple layers features at once, get their attributes to show them in table ( add attributes to table i have done already for my other project).

Any other solution, suggestion or advise that might be helpful will be appreciate .

Thank you very much.

Re: Multiple layers selection

JeffreyWilkerson — Thu, 26 Aug 2021 15:02:52 GMT

Just like in the example, you are going to have to use the drawn box (polygon) and do a 'featureLayer.queryFeatures' on all of the layers that you add to your map. The hard part is going to be what you do with it afterwards, as I believe the FeatureTable that's being used can only attach to one featureLayer at a time.

You could get the results for each featurelayer, push them into one JSON string, and then use something like Dojo's 'dGrid' to display them, that would be a lot of work but you would have full control over it. You could also take each result and write out the table in HTML (<table><tr><td>fieldname</td><td>field value</td></tr></table>) and stuff it back into the page.

If you have access to the new Experience Builder, you could create a page with a map, add all of your layers, and then add the Table widget which can show the results of all of the feature layers with a nice way to select each one. That would be my recommendation, but again, you need access to Experience Builder.

Re: Multiple layers selection

Vakhtang_Zubiashvili — Wed, 15 Sep 2021 14:28:41 GMT

Thanks Jeffrey, i had no tie to try your advice, in next few day i will try and let you know my results.