MapImageLayer sublayers not showing in LayerList?

CharlieElverson — Sat, 11 Dec 2021 19:07:52 GMT

I'm using a LayerList to manage layers in the associated map, but none of the sublayers show up in the LayerList widget. The LayerList does not have it's view property set, as I found this allowed me to manually manage the operationalItems.

My intention is to maintain a list of the available layers but only create and add the layers to the map when they're needed. So, the layers are created as follows (typescript):

            let newItem = new ListItem();
            newItem.layer = new MapImageLayer({
                url: item.url,
                id: item.id,
                title: item.title,
                listMode: 'show',
                visible: false
            })
            newItem.title = item.title;
            newItem.layer.watch("visible", this.toggleLayer);
            itemArray.push(newItem);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

itemArray is then used to create the LayerList operationalItems, and the toggleLayer method essentially adds the layer to the map, if it wasn't already.

Thanks.

topic MapImageLayer sublayers not showing in LayerList? in ArcGIS JavaScript Maps SDK Questions

MapImageLayer sublayers not showing in LayerList?