Nested Grid in GWT

[Saritha]

I need to develop a control which is similar to the Nested Grid (http://www.smartclient.com/smartgwt/showcase/#grid_nested_grid) in the Smart GWT.

User will be having a column for expansion images, when user clicking on the image in a particular row, a sub grid has to be opened there itself. Here all remaining rows needs to move down.

How can i achieve that functionality? Can anybody give me some clues so that i can proceed.

I have already a grid which is a celltable with custom header(with search functionality implemented).

Thanks, 

Saritha.