Latest Contributions by DougBrowning

EDIT:  Made it more efficient by only setting listeners for nonbasemap layers. Well I finally found a way to do it.  I tried this before I thought but now it works. This shows you how to listen for changes in Layer Visibility and also allows for a "Working Set TOC".  This Working Set has just the layers that have been turned on for the current session. It basically adds an event for every layer to listen for FLEX.Show (showing the layer).  It also builds a start list that contains all the exclude layers and all the map layers so that the TOC starts blank.  Then when the show event kicks it removes that layer from the list of layers to exclude.  All checkmarks and such sync in the two TOCs. The move up and down also syncs though, which i do not want.  I will work on that.  Hope it helps someone.  If this is wrong let me know.  This is my first Flex work. 1.  Copy the MapSwitcherWidget, paste and rename as MapSwitcherWidget2. 2.  Add a line so that it compiles the MapSwitcherWidget2 3.  In the new MapSwitcherWidget2 modify the initTOC and add a function.  These are the changes    /* Added by me */    private function mapLayerAddHandler2(event:Event):void    {     templist.removeItemAt(templist.getItemIndex(event.currentTarget.id));    }    private function initTOC(expandLayerItems:Boolean = false):void             {             toc2.map = map;   /* this will also stop layers from being listed */     toc2.isMapServiceOnly = false; //gotta get this from the config file     /*toc2.excludeLayers = getExcludeLayers();*/     toc2.basemapLayers = getBasemapLayers();         templist = getExcludeLayers();     var layerlist:ArrayCollection = map.layers as ArrayCollection;     for (var j:int = 0; j < layerlist.length; j++)     {      if (toc2.basemapLayers.getItemIndex(layerlist .id) == -1)      {       layerlist .addEventListener(FlexEvent.SHOW, mapLayerAddHandler2, false, 0, true);      }           templist.addItem(layerlist .id);          } ... View more