WAB - how can I change and apply a legend?

[NatashaManzuiga]

Dear all,

I have an ArcGISDynamicMapServiceLayer with 10 sublayers.

The sublayers are filtered using setLayerDefinitions ....
Now I would like to refresh the legend of a filtered sublayer applying UniqueValueDefinition, is it possible?

Thanks,

Naty

[NatashaManzuiga]

Hi all, I made it using lyr.setLayerDrawingOptions(optionsArray); 

It works...but how can I refresh the legend in the LayerList widget? I tried with _refresh method....but it doesn't work.

Thanks,

Naty