Hi Adrian,

You will need to either modify the css that the grid is using (ig_datagrid.css) or supply a custom css for SelectedCellCssClass.

<style type="text/css">
        tbody tr td.custom
        {
            background-color :Red;
        }
    </style>

<ig:Selection SelectedCellCssClass="custom">
            </ig:Selection>

This will style each cell in a selected row if row selection is on.

regards,
David Young