topic Programatically filter LayerList widgets in JS API 4.9 in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/programatically-filter-layerlist-widgets-in-js-api/m-p/532905#M49675 <HTML><HEAD></HEAD><BODY><P>I have an app with two LayerList widgets in different sections of the app.&nbsp; One layer list widget is displaying all layers added to the map.&nbsp; I want to make it so the second layer list widget only displays a subset of the layers added to the map - ie, layers a user uploads from their computer locally (geojson, csv, kml, etc.).&nbsp;&nbsp;</P><P></P><P>Is there any way in the listItemCreatedFunction to just remove layers that don't meet this criteria?&nbsp; Unclear how to achieve this.&nbsp; With only one layerlist widget I could set listMode on the layer to 'hide,' but this won't work for my purposes, since my first layer list needs to display all layers.&nbsp; I haven't figured out how to intercept this function and just not add the item to the widget in the first place....</P><P></P><P>Thanks!&nbsp;</P></BODY></HTML> Mon, 25 Feb 2019 17:16:12 GMT Jay_Gregory 2019-02-25T17:16:12Z Programatically filter LayerList widgets in JS API 4.9 https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/programatically-filter-layerlist-widgets-in-js-api/m-p/532905#M49675 <HTML><HEAD></HEAD><BODY><P>I have an app with two LayerList widgets in different sections of the app.&nbsp; One layer list widget is displaying all layers added to the map.&nbsp; I want to make it so the second layer list widget only displays a subset of the layers added to the map - ie, layers a user uploads from their computer locally (geojson, csv, kml, etc.).&nbsp;&nbsp;</P><P></P><P>Is there any way in the listItemCreatedFunction to just remove layers that don't meet this criteria?&nbsp; Unclear how to achieve this.&nbsp; With only one layerlist widget I could set listMode on the layer to 'hide,' but this won't work for my purposes, since my first layer list needs to display all layers.&nbsp; I haven't figured out how to intercept this function and just not add the item to the widget in the first place....</P><P></P><P>Thanks!&nbsp;</P></BODY></HTML> Mon, 25 Feb 2019 17:16:12 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/programatically-filter-layerlist-widgets-in-js-api/m-p/532905#M49675 Jay_Gregory 2019-02-25T17:16:12Z