I have two grids. One lists regions (south, east, west etc). The other grid lists all centers within a particular region.

I want to be able to allow my users to click on the check box in the regions grid and the center grid will display all those centers within that particular region and automatically populate the center grid checkbox.

For example if I select region east and west, i want to see all the centers in the regions east and west automatically checked in teh centers grid....