editFeatureLayer.addEventListener(FeatureLayerEvent.EDITS_COMPLETE, editFeatureLayer_editsCompleteHandler);
editFeatureLayer.applyEdits([ lastDrawnGraphic ], null, null);
private function editFeatureLayer_editsCompleteHandler(event:FeatureLayerEvent):void
{
// You can also check if the edit was a success
editFeatureLayer.refresh();
}