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capture all map and layers that are existing in the application when a button is clicked

Alexwang

Hello, new to the arcgis dev. My question is how to get all base maps and operational layers with a button click on a widget? the button click should capture all map and layers that are currently existing in the application when button click is triggered. Please share the codes. Thanks,

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Accepted answers

RobertScheitlin__GISP

Alex,

You can use the LayerInfos class in WAB:

LayerInfos class—Web AppBuilder for ArcGIS (Developer Edition) | ArcGIS for Developers

There is a code snippet in the above doc page.

All comments

RobertScheitlin__GISP

Alex,

You can use the LayerInfos class in WAB:

LayerInfos class—Web AppBuilder for ArcGIS (Developer Edition) | ArcGIS for Developers

There is a code snippet in the above doc page.

Alexwang

Always thank you for your replies, Robert.

just confirm: is LayerInfos.getInstance(this.map, this.map.itemInfo) able to catch all layers (base map tiles, graphics, feature layer, and any dynamic layers added by users)?

RobertScheitlin__GISP

Alex,

Yes. Use getBasemapLayers function to get basemaps and getLayerInfoArray for all operational Layers

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