topic Re: LayerList legend not updating correctly in ArcGIS JavaScript Maps SDK Questions

LayerList legend not updating correctly

KenBuja — Wed, 02 Dec 2015 21:30:02 GMT

The LayerList widget in 3.15 has some additional functionality, including showing the legend. However, the legend doesn't get updated when the checkbox on a layer is clicked. It will only update when the map is zoomed in or out. It will not update if the map is panned.

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Re: LayerList legend not updating correctly

RobertScheitlin__GISP — Wed, 02 Dec 2015 21:48:43 GMT

Ken,

I am seeing the same thing. Are you going to call this into Tech Support?

Re: LayerList legend not updating correctly

KenBuja — Thu, 03 Dec 2015 16:16:21 GMT

Yes, I have called it in. Currently, their work-around is to use the toggle event to refresh the widget when a layer is toggled. Unfortunately, this has the side effect of collapsing the LayerList widget every time you toggle a layer.

myWidget.on("toggle", function (){ myWidget.refresh(); });

This doesn't have any effect on the startup issue, though. I tried refreshing the widget when the load event is fired, but that leaves the legend totally empty.

Re: LayerList legend not updating correctly

KenBuja — Mon, 21 Mar 2016 16:05:42 GMT

This has been fixed in 3.16

ENH-000092811: Layerlist widget now updates the legend on the toggle of the sub layers.