topic Re: Removing KML Layers from the map in ArcGIS JavaScript Maps SDK Questions

Removing KML Layers from the map

JamesVillanueva — Thu, 12 Apr 2012 16:36:04 GMT

I'm stumped on this one. I add a KML Layer to the map: http://www.climatehotmap.org/kml/chm.kml and it gets added as many different layers. After this occurs, I can not figure out how to remove them all from the map. Normal things like removing them one at a time or calling removeAllLayers doesn't seem to work. Any suggestions?

Re: Removing KML Layers from the map

BetsySchenck-Gardner — Thu, 12 Apr 2012 17:04:10 GMT

I haven't had much success with .removeAllLayers but I've used the .hide() instead to remove layers from being displayed on a map. I add and hide layers all the time this way. I took your kml link and was able to add it to the map, and then hide it from the map.

Re: Removing KML Layers from the map

derekswingley1 — Thu, 12 Apr 2012 17:10:27 GMT

You're correct in that the KML uses several layers to display features from a KML file. But you can still treat a KMLLayer as a regular layer meaning you can pass it to map.removeLayer and all associated layers will be removed from the map. Here's an example: http://jsfiddle.net/Zd8ne/

Re: Removing KML Layers from the map

JamesVillanueva — Thu, 12 Apr 2012 17:33:54 GMT

Derek,

Your response makes sense. I got myself in trouble as I have a custom map widget that inherits from the original map. I had overriden the AddLayer and Addlayers to add custom functionality for tracking layers for use with in a Custom TOC. Your post helped me to understand I need to go back revise my means of tracking added layers in the TOC. Thanks for the help.