Radio Group within a Grid (2.02 or higher)

hello, I've been looking through the forum to get an idea on how to have a group of 3 radio buttons tied to a single row. I cannot seem to find a solution. I have xml data coming back from the server with a permissionsid. that permissionsid can be a 1, 2, or 3. I would like to have a corresponding radio button selected via the permissionsid. If a 1 then radiobutton1 is selected, if 2 radiobutton2 selected, and so forth. Any assistance on this would be greatly appreciated.