There is my scenario
I have a restful service (json) which provides CRUD functionality. I could load Grid from JSON Rest ful service.
Now, I am using a Editor Grid and I change the fetch data and want to update the rest ful service.
So I will catch event on either Grid/EditorGrid or ListStore and from there I will manually update restful service.
The main thing here is I want to get the JSON or XML of the row (which I originally fetched from restful service), so I can change it and sent an update back to server.
If some one could guide on this, I could make my crucial decision of making GXT as my rendering framework.