topic Does the Layer List have a toggle to the legend in JS API 4.6? in ArcGIS JavaScript Maps SDK Questions

Does the Layer List have a toggle to the legend in JS API 4.6?

IanPeebles — Wed, 03 Jan 2018 22:44:01 GMT

Does the Layer List have a toggle to the legend in JS API 4.6? (Sublayers/Legend). Users need to see symbology, not just check boxes. I cannot find the option.

Here is what I am looking for in the 4.6 API.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

RobertScheitlin__GISP — Thu, 04 Jan 2018 14:20:43 GMT

Ian,

That ability/feature does not exist as of 4.6. There is nothing indicating that that feature will be added either. You best bet is to call esri tech support and start an enhancement request.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

IanPeebles — Thu, 04 Jan 2018 16:00:21 GMT

Oh man that is unfortunate. I am heading out to the Dev Summit in March and will find out more information. The layer list is nice, but end users have no idea what symbology they are looking at. I am not sure why not having the checklist and legend together is done by design.

Robert,

Are you using 4.x API? Do any of your apps have a layer list/combo? I am still working in 3.23 for the most part. Thank you again for the feedback.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

RobertScheitlin__GISP — Thu, 04 Jan 2018 16:04:12 GMT

Ian,

I have not combined the layerList and Legend in any of my 4.x apps.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

DavidColey — Thu, 04 Jan 2018 18:37:16 GMT

Ian, you can take a look at my post here:

JSAPI 4.x LayerList and Legend Together

we have the legend symbols displaying as a trigger-action event

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

RobertScheitlin__GISP — Thu, 04 Jan 2018 19:18:58 GMT

David,

Your link is dead.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

DavidColey — Thu, 04 Jan 2018 19:34:02 GMT

Thanks Robert I just edited the link should be working now

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

KellyHutchins — Fri, 05 Jan 2018 17:25:02 GMT

This capability will be added to 4.x in a future release. The plan is to allow legend and opacity slider to be placed in a list item.

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

Andy_Morgan — Wed, 08 May 2019 19:18:51 GMT

Hi Kelly, I'm trying to understand if there is, or soon will be, a way to reproduce a combined TOC/Legend in 4.x before we migrate away from 3.x. The only shortcoming with the Add a Legend to LayerList sample is the limitation of only allowing top level visibility toggling (all or nothing for the map service). If I'm understanding you correctly, eventually we'll be able to create a LayerList and apply legend symbols per each individual sublayer. Is this coming any time soon, perhaps?

Here is my desired outcome using ESRI 4.x API widgets/classes. The ✔ represents a visibility on/off switch.

✔ City Utilities [top level map service]

✔ Water Group [group layer]

✔ Water Valve [layer]

<*> [symbol]

✔ Water Line [layer]

------ [symbol]

✔ Sewer Group [group layer]

✔ Sewer Manhole [layer]

O [symbol]

✔ Sewer Line [layer]

------ [symbol]

Re: Does the Layer List have a toggle to the legend in JS API 4.6?

MikeDolbow — Tue, 29 Mar 2022 18:27:35 GMT

Just curious if this is in 4.x now, or if I'm missing something. I do see several samples tagged with "TOC", including this one, but none that have the opacity slider. But I don't see anything about the legend in the layerlist properties or anything like that. Maybe I'm just not finding what I'm looking for?