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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 Jul 31, 2019 by xylochic627


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, 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.