Regarding a layer or map refresh

[HariomPandya]

Hi All , I have a custom widget where i am uploading a  excel file and that excel file will dump my data in the layers  . 
Now i  have a  filter widget where i have configured that layers ,when i am looking for the uploaded data in widget it is not reflecting in widget , i need to refresh my whole application session to view the data in widget However the data is coming if i on the layer or view it in attribute table .
Can anyone suggest me how can i refresh the map or layer source of widget without refreshing the whole session . 

[Allen_Zhang]

Have you tried the Layer's refresh method?

https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-FeatureLayer.html#refresh

[HariomPandya]

Hi Allen , I tried this but doesnt work for widget source refresh .

[Allen_Zhang]

The Layer's refresh methos only work for the layer instance in the map.

For widget data source, I'll get the widget's data source instance and try ds.load(queryParams, { widgetId, refresh: true}).

I'm not quite sure if this is your condition.