topic Re: map.removeLayer(myLyr) does not work in ArcGIS API for Flex Questions

map.removeLayer(myLyr) does not work

ShaningYu — Mon, 25 Oct 2010 16:40:21 GMT

Scenario description:
Created several checkboxes. If a checkbox is checked, a layer is added, or else, the layer will be removed (see the code below). However, I can't remove the added layer(s). I run debugging, it does go through map.removeLayer(lyr), but the layer I created is still on the map. If you have a better approach or find anything wrong in my code, please help. Thanks.

private function ChkSettings (chk:ImageCheckBox, lyr:GraphicsLayer,
    ac:ArrayCollection, lyrName:String ):void {
   if (chk.selected == false) {
lyr.clear();
for (var i:Number = 0; i < map.layers.length; i++) {
if (map.layers.name == lyrName) {
   map.removeLayer(lyr);
}
}
   } else {
lyr = AddGeocodeLayer2(ac);
lyr.name = lyrName;
map.addLayer(lyr);
   }
}

Re: map.removeLayer(myLyr) does not work - Problem solved

ShaningYu — Mon, 25 Oct 2010 18:06:24 GMT

Problem solved by change
map.removeLayer(lyr);
to
map.removeLayer(map.layers);

Re: map.removeLayer(myLyr) does not work

AdrianMarsden — Mon, 22 Apr 2013 08:58:40 GMT

Hi - I'm having issues with this too - I've tried

map.removeLayer(map.layers[0]);

(The layer I want to remove is index 0)

This results in[

CODE]

ncaught TypeError: Cannot read property '0' of undefined basecode.js:981

switchBaseMapbasecode.js:981

onClick

_d66._onClickinit.js:34

_2cfinit.js:15

_b24._onClickinit.js:34

(anonymous function)init.js:15

_7bbinit.js:34

map.removeLayer('mainmap');

The gives no errors, but doesn't do anything, the layer is still showing if I Look at console.debug(map)

Cheers

ACM

Re: map.removeLayer(myLyr) does not work

FabioPires — Tue, 22 May 2018 13:03:06 GMT

Problem solved,

if (this.map.getLayer (layerID)) this.map.removeLayer (this.map.getLayer (layerID));

where layerID is the given layer.id when the layer is created, e.g., could be the same as lyr.name in your case.