topic Re: Stop updating view when move by cursor in ArcGIS JavaScript Maps SDK Questions

Stop updating view when move by cursor

Vakhtang_Zubiashvili — Mon, 21 Feb 2022 07:49:17 GMT

Hi all,

I have one issue on my map, when i add feature layer on map after generated it from expression i goTo result, it works fine, but when i want to zoom in or zoom out or move side, extent updates automatically and returns me back to first generated extent. when i remove TARGET and ZOOM code does not work.

how can i stop continuously updating my extent?

Thanks.

here is code snippet i use to goTo() layer:

view.whenLayerView(xaro).then(function(layerView) { layerView.watch("updating", function(value) { if (!value) { layerView .queryFeatures() .then(function(results) { // do something with the resulting graphics graphics = results.features; view.goTo({target: graphics, zoom: 15}) }); } }); });

Re: Stop updating view when move by cursor

ReneRubalcava — Mon, 21 Feb 2022 17:12:53 GMT

You can do this a couple of ways. Most convenient is to use whenFalseOnce()

https://developers.arcgis.com/javascript/latest/api-reference/esri-core-watchUtils.html#whenFalseOnce

The other is to ruse the WatchHandle remove method when done

https://developers.arcgis.com/javascript/latest/api-reference/esri-core-Accessor.html#WatchHandle

const handle = layerView.watch("updating", (value) => { // do your thing handle.remove() })

Re: Stop updating view when move by cursor

Vakhtang_Zubiashvili — Wed, 23 Feb 2022 07:57:03 GMT

Thank you Rene, works like a charm 🙂