DefinitionExpression not working for group layer : WAB Dev Edition 2.24

[PrashantKirpan]

Hi All,

I've group layers in my web map, structure looks like below :

I'm trying to apply definition expression to one of the layer i.e. "Operational PolyFeature" but it's not working. Here is my sample code : 

var layerStructureInstance = LayerStructure.getInstance();
 layerStructureInstance.traversal(lang.hitch(this, function (layerNode) {
  if (layerNode.title === 'Operational PolyFeature') {
   layerNode.getLayerObject().then(lang.hitch(this, function (layerObject) {
   layerObject.setDefinitionExpression("objectid = 123");
   layerNode.show();
       }));
      }
   }));

How to apply def expression on group layer, any help would be appreciated.

-Prashant

[PrashantKirpan · Accepted solution]

Fixed by using this code 

  layerNode.setFilter(expression);