topic Re: LayerList widget expand on startup in ArcGIS Web AppBuilder Questions

LayerList widget expand on startup

NatashaManzuiga — Mon, 12 Dec 2016 14:16:05 GMT

Hello,

I want to know if there is a way to expand RootLayer at the LayerList widget startup.

Thanks,

Naty

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Fri, 10 Dec 2021 23:08:23 GMT

Naty,

Sure add this code block to the end of the _initOperations function in the LayerListView.js file:

      this.own(on(this.operationsDropMenu ,
        'onMenuClick',
        lang.hitch(this, this._onOperationsMenuItemClick)));
       setTimeout(lang.hitch(this, function(){
         this.foldOrUnfoldAllRootLayers(false);
       }), 300);‍‍‍‍‍‍

Re: LayerList widget expand on startup

NatashaManzuiga — Mon, 12 Dec 2016 15:10:14 GMT

Thanks Robert!

And can I hide root node?

Naty

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Mon, 12 Dec 2016 15:23:20 GMT

Not that I know of. Why would you want to? If the root was hidden how would you change it's visibility?

Re: LayerList widget expand on startup

NatashaManzuiga — Fri, 10 Dec 2021 23:08:26 GMT

Its visibility must always be active and it's redundant to see it in LayerList.
Naty

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Mon, 12 Dec 2016 15:45:46 GMT

Naty,

Maybe a screen shot would help explain better, because I do not understand.

Re: LayerList widget expand on startup

NatashaManzuiga — Mon, 12 Dec 2016 15:51:42 GMT

I just have only one operational layer...and I want to remove the root Level

Re: LayerList widget expand on startup

deleted-user-CQZbjNeBXm49 — Tue, 13 Dec 2016 15:02:16 GMT

I had very much like to do same too

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Tue, 13 Dec 2016 15:10:04 GMT

Naty,

OK, so you have a Map Service that only has one layer and you have the MapService name the same as the one layer that that service contains. Hmm. I will have to think about this, as it is not common practice for a GIS data manager/publisher to have a scenario like that.

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Tue, 13 Dec 2016 19:29:57 GMT

Naty,

Don't forget that your original question as already been answered.

Re: LayerList widget expand on startup

TimHayes1 — Tue, 13 Dec 2016 20:00:54 GMT

Me too!

Re: LayerList widget expand on startup

RyanKelso — Thu, 15 Dec 2016 19:10:05 GMT

Natasha, since you have only one layer in this map service, you could try adding it to your map as an individual feature layer. Then you would not see the root node. Maybe you tried this already... feature layers do have some drawbacks that may or may not apply, but it could work.

Re: LayerList widget expand on startup

WarrenMedernach — Tue, 13 Feb 2018 20:19:18 GMT

Hey Robert, I tried implementing this but it's not working.

Is this snippet supposed to replace the existing 'onMenuClick' code or go after it?

Existing last line:

this.own(p(this.operationsDropMenu, "onMenuClick", m.hitch(this, this._onOperationsMenuItemClick)))‍

Thanks!

Warren

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Tue, 13 Feb 2018 20:29:47 GMT

Warren,

It goes after it but based on the code you provided you are using minified code and that poses a problem. I am not sure it will work for you.

Re: LayerList widget expand on startup

RexRobichaux — Thu, 19 Nov 2020 19:59:56 GMT

Hey @RobertScheitlin__GISP - this is great! (sorry for bringing up an old post by the way). This really helped make our grouped layer lists more user friendly in our new app.

I did encounter one issue...admittedly, I didn't test this before the code change so I'll go back and verify... however after the change, if/when I choose to "Turn All Layers On", nothing happens. Similarly, if I opt to "Turn All Layers Off" only the parent / root parent turns off now. Have you experience this? We are using the Foldable theme in WABD 2.17. Thanks for any help you can provide!

Re: LayerList widget expand on startup

RobertScheitlin__GISP — Thu, 19 Nov 2020 20:35:29 GMT

Rex,

The "turn all layers on" menu option only turns parent layers on it does not alter sublayer visibility.