topic Re: How do you populate Feature.layerDetails in ArcGIS API for Flex Questions

How do you populate Feature.layerDetails

WaltBulawa — Tue, 26 Apr 2011 18:41:06 GMT

After the following lines:

private var myFeatureLayer:FeatureLayer;
myFeatureLayer = new FeatureLayer(url_of_myLayer);

Looking at the myFeatureLayer.layerDetails in the debugger shows a null for its value.

How would I get layerDetails populated for this feature layer? Any action script code (non-xml) example to show this would be very much appreciated. Thanks.

Re: How do you populate Feature.layerDetails

RobertScheitlin__GISP — Sun, 12 Dec 2021 01:53:02 GMT

Walt,

You have to wait for the layer to be loaded.

                            private function getMyLayerDeatils():void{
                                if (myFeatureLayer && !myFeatureLayer.loaded)
    {
     myFeatureLayer.addEventListener(LayerEvent.LOAD, myFeatureLayer_loadHandler);
     function myFeatureLayer_loadHandler(event:LayerEvent):void
     {
      getMyLayerDeatils();
     }
     return;
    }
                                //Do something here
                            }

Re: How do you populate Feature.layerDetails

WaltBulawa — Tue, 26 Apr 2011 19:36:07 GMT

Thank you Robert for your help. With your help I created the following which works:

myFeatureLayer = new FeatureLayer(url_of_myLayer);
myFeatureLayer.addEventListener(LayerEvent.LOAD,getLayerDetails);

and then:

private function getLayerDetails(event:LayerEvent):void
{
   var thisLayer:FeatureLayer = event.layer as FeatureLayer;
   myLayerDetails = thisLayer.layerDetails;
   myLayerFieldsArray = myLayerDetails.fields;
   if (myLayerFieldsArray.length > 0)
   {
      for (var j:int = 0; j < myLayerFieldsArray.length; j++)
      {
         myFieldsList.addItem(myLayerFieldsArray.name);
      }
    }
}