On an inquiry I am creating (not a GI), as a data view is populating lines into a grid, if a comparison test is performed with columns in the row, under certain conditions I would like to highlight a column with a warning error. So, when the grid of rows is initially displayed, there may be one or more rows that would have this warning error. 

I tried using event handlers, but this is not really an even that occurs in the traditional sense (RowUpdating, FieldVerifying, etc).

Is there a way to do this?