How to make a layer visible dynamically in Flex Viewer?

[FarhadNavaei]

I have a set of layers in operationallayers tag in my Flex Code (4.5) connected to ArcGIS Server 10, and I want to make them visible dynamically in a ComboBox Change Handler. Is it possible?

[FarhadNavaei · Accepted solution]

OK, I found the answer in this thread. I added the following

    var dyn:ArcGISDynamicMapServiceLayer= map.getLayer("Data Layers") as ArcGISDynamicMapServiceLayer;     var layerId:int;                                  layerId=1;     dyn.visibleLayers.addItem(layerId);     dyn.refresh();