Datagrid: Select Row without Edit or Buttons

Is there a way to select a row in a datagrid by clicking anywhere within the desired row to select it for the only purpose of returning the ID value of that row and setting a different background color to the row?

Once this is acomplished, i will run a little bit-o code that will query a db based on the ID value returned on the selected row, but i cannot use a button or a link column for design purposes...nor do i want to build it in javascript.

I have done this before, i am unable to find my code for it though :cry:

Thanks for any input.