topic Re: How to set a layer name while adding a new layer in Web AppBuilder Custom Widgets Questions

How to set a layer name while adding a new layer

MichelTurmel — Mon, 28 Sep 2020 19:43:16 GMT

I am in the process of creating my first custom 2 D widget and I can dynamically add a layer on the map but when I use the standard Layer List widget I see that the name of the layer I added to the map is the name of the Map Service that I have used. Is there a way to set the name of the new layer that will be displayed when I use the standard Layer List widget?

Here is my environment:

- Portal for ArcGIS version 10.6

- Web AppBuilder Developer Edition 2.6

- ArcGIS JavaScript API 3.33

Re: How to set a layer name while adding a new layer

RobertScheitlin__GISP — Tue, 29 Sep 2020 12:31:09 GMT

Michel,

I set several layer properties in my widgets.

layer._titleForLegend = layer.title = layer.name = 'blah';

Re: How to set a layer name while adding a new layer

MichelTurmel — Tue, 29 Sep 2020 15:59:29 GMT

Good morning Robert,

Thank you for the reply, is there a sample widget url that you could send me?

Am I right to assume that I will be able to use “layer._titleForLegend = layer.title = layer.name<https://urldefense.proofpoint.com/v2/url?u=http-3A__layer.name&d=DwQCaQ&c=H50I6Bh8SW87d_bXfZP_8g&r=k3rHcdYwBizPCV7b7qgyUp_gjpgw6vSQ0uK1EqfctxM&m=4sZH_igkBdNWXpHFicvptdY2VRbC-kg3mtYXdyRTM3A&s=snZ27qhuj0u1lZj_txlk_UasN0p53vCRwThw9h-A5nQ&e=> = 'blah';” only as part of event “layers-add-result” after the map.addLayers(); is completed?

Michel Turmel

Senior Consultant

CGI

Email: michel.turmel@cgi.com<mailto:michel.turmel@cgi.com>

Phone: (306) 761-4000 Ext: 1354384

1900 Albert Street

Regina, Saskatchewan

S4P 4K8

Re: How to set a layer name while adding a new layer

RobertScheitlin__GISP — Sun, 12 Dec 2021 09:55:56 GMT

Michel,

No you do not wait for the layer to be added before you apply those properties. After you use the layer constructor you apply those properties before the layer is added to the map.

var myfl = new FeatureLayer("your url", {...});
myfl_titleForLegend = myfl.title = myfl.name = 'blah';
this.map.addLayer(myfl);‍‍‍

You can find this property ("_titleForLegend") in the otb AddData widget and in my eSearch Widget.

https://community.esri.com/docs/DOC-1731-enhanced-search-widget-version-213-092519

Re: How to set a layer name while adding a new layer

MichelTurmel — Tue, 29 Sep 2020 16:41:10 GMT

Thank you very much Robert,

This works great!

Michel Turmel

Senior Consultant

CGI

Email: michel.turmel@cgi.com<mailto:michel.turmel@cgi.com>

Phone: (306) 761-4000 Ext: 1354384

1900 Albert Street

Regina, Saskatchewan

S4P 4K8

Re: How to set a layer name while adding a new layer

JohnLucotch2 — Thu, 15 Oct 2020 21:12:45 GMT

Hey Robert,

I'm running into this issue as well but I want just the default title to be the layer name of the Feature Layer instead of the Map Service. Any ideas? I want to use the name in the Layer 1 Name: Layer: Incorporated Place labels (ID: 1)

Re: How to set a layer name while adding a new layer

MichelTurmel — Thu, 15 Oct 2020 21:45:38 GMT

Hello John,

You will need to set the layer name in a variable and then apply it to the layer you are about to add:

var template = new esri.InfoTemplate();

var newLayerName = "new layer name"

var newLayerSearch = "....."

var newLayerURL = "https://..........";

var newLayerFeatureLayer = new esri.layers.FeatureLayer(newLayerURL, {

id: newLayerName,

definitionExpression: newLayerSearch

});

// the following line will provide the layer name displayed on the Layer List:

newLayerFeatureLayer._titleForLegend=newLayerFeatureLayer.title=newLayerFeatureLayer.name=newLayerName

map.addLayers([newLayerFeatureLayer]);

Hope this helps!

Michel Turmel

Re: How to set a layer name while adding a new layer

JohnLucotch2 — Thu, 15 Oct 2020 21:55:47 GMT

Thanks but not what I was hoping for. I don’t want to use the name variable. I want to use the default layer name similar to the add data widget.