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Highlight Popup Feature from Map Image Layer, JS API 4.9

Question asked by cle444 on Nov 6, 2018
Latest reply on Nov 9, 2018 by rscheitlin

Questions:

1. Mechanism of highlighting popup's selected feature from a query enabled map image layer? Found the popup highlighting is enabled by default for feature layers, controlled by view.highlightOptions. Is there a magical setting for map image layer then there is no need to have a workaround using graphics?

 

2. For the feature layer popup highlighting, where is that piece of blue highlighting graphic stored in JS? Initially, I thought it may be in view.graphics, not there.

 

Side by side comparison:

Map Service, popup and no highlighting: Highlight popup on MapImageLayer - ArcGIS JS API 4.9 

Feature Service, popup and highlighting in blue: Highlight popup on FeatureLayer - ArcGIS JS API 4.9 

 

Appreciated if there is anyone with such experience.

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