Latest Contributions by ReneRubalcava

I was curious if there was a clean way to remove particular selections from a Featurelayer. I tried a couple of different methods to limit the selection to first selected feature. I thought I could cheat and splice the selectedFeatures var x:uint = featurelayer.selectedFeatures.length; featurelayerselectedFeatures.splice(1,x); But that didn't work. Then I tried to grab the first graphic and make a new FeatureCollection var g:Graphic = featurelayer.selectedFeatures[0]; featureLayer.featureCollection = new FeatureCollection(new FeatureSet( )); That didn't work either. The next step I suppose would be to use the first graphic geometry to do second selection query on the FeatureLayer, but that seems a bit heavy handed. The reason I am using FeatureLayer is that this is for a custom component and it is much simpler to pass a FeatureLayer with built in query/selection capabilities than to pass a QueryTask URL and an existing GraphicsLayer on the Map, plus it fits into my workflow as I have some listeners in the main app for when a selection ends on the FeatureLayer being passed. If there's no way to tweak the SelectedFeatures after the fact, I'll just go the QueryTask/GraphicsLayer route, but I figure it couldn't hurt to ask. ... View more

Recently I noticed in the 2.0 API, there is no more LayerEvent.TILES_UPDATED, just a LayerEvent.UPDATE_END, which is great. Simplifies things quite a bit. When needing to manage Layers, i.e. - when they load and are complete, it would be great if the Flex API could dispatch a LayerEvent.UPDATE_END when layer.visible = false is peformed. I realize that visible is inherited from the UIComponent, but as of right now if you want to know that layer.visible has been set to false, you need to listen for FlexEvent.HIDE, but when layer.visible is set to true, you'll still get a LayerEvent.UPDATE_END event. That would mean that to manage visible layers in real time, I'd need to listen to 2 events from the same layer to do the same thing. Here is a code snippet that I currently use to deal with this situation. map.addEventListener(MapEvent.LAYER_ADD, map_layerAddHandler) protected var lyrCount:uint; protected var lyrUpdateCount:uint; protected function map_layerAddHandler(event:MapEvent):void { var lyr:Layer = event.layer; lyr.addEventListener(LayerEvent.UPDATE_END, onLayerUpdateEnd_handler); lyr.addEventListener(FlexEvent.HIDE, function(e:Event):void{trace(e)}); lyr.addEventListener(FlexEvent.HIDE, onHide); if (lyr.visible)   lyrCount++; } // I need to listen for the Hide event and manually dispatch a LayerEvent // in order to have a proper count of current visible layers protected function onHide(event:FlexEvent):void { if (event.currentTarget is Layer) {   event.currentTarget.dispatchEvent(new LayerEvent(LayerEvent.UPDATE_END, event.currentTarget as Layer, null, true, false)); } } protected function onLayerUpdateEnd_handler(event:LayerEvent):void { if (event.updateSuccess) {   lyrUpdateCount++;   var lyr:Layer   var tmpCount:uint = lyrCount;   lyrCount = 0;   for each (lyr in this.layers) {    if (lyr.visible)     lyrCount++;   }   trace("lyrCount",lyrCount);   trace("lyrUpdateCount",lyrUpdateCount);   trace("tmpCount",tmpCount);   if (lyrUpdateCount == lyrCount || lyrCount != tmpCount) {    lyrUpdateCount = 0;   } } } It's really more of a convenience request, but it'd be nice to have. I figure since you're working on API 2.1, it couldn't hurt to ask. Thanks. ... View more