topic Re: One layer visible at a time with LayerList? in ArcGIS JavaScript Maps SDK Questions

One layer visible at a time with LayerList?

AlexGilvarry1 — Thu, 16 May 2019 16:24:56 GMT

Is it possible to set the LayerList widget to only show one layer at a time in 4.x?

Re: One layer visible at a time with LayerList?

RobertScheitlin__GISP — Thu, 16 May 2019 17:58:55 GMT

Is this a 3.x or 4.x API question?

Re: One layer visible at a time with LayerList?

AlexGilvarry1 — Thu, 16 May 2019 18:06:10 GMT

4.x. Sorry, updated the original question.

Re: One layer visible at a time with LayerList?

RobertScheitlin__GISP — Sat, 11 Dec 2021 22:57:50 GMT

Alex,

See this sample. It uses a group layer to set the layers to exclusive mode.

        var demographicGroupLayer = new GroupLayer({
          title: "US Demographics",
          visible: true,
          visibilityMode: "exclusive",
          layers: [USALayer, censusLayer],
          opacity: 0.75
        });‍‍‍‍‍‍‍‍‍‍‍‍‍‍

https://developers.arcgis.com/javascript/latest/sample-code/sandbox/index.html?sample=widgets-layerlist-actions

Re: One layer visible at a time with LayerList?

AlexGilvarry1 — Thu, 16 May 2019 18:47:53 GMT

This could work! Thanks! Do you know if it's possible to default the layer group to be open so it displays all the child layers when the map loads?

Re: One layer visible at a time with LayerList?

RobertScheitlin__GISP — Thu, 16 May 2019 18:52:06 GMT

See this thread:

https://community.esri.com/thread/192285-how-to-expand-the-layerlist-in-api-43#comment-696533

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