Gridview Data

Question

Hi

  I am filling GridView data with following fields StudentName , STudentCode, Address thru stored procedure. I want to another field 'Marks' at runtime . Can it be done thru GridView RowDataBound

<asp:GridView ID="grdPlanning" class="table table-bordered" runat="server" OnRowDataBound="gr_RowDataBound" OnRowCommand="grdPlanning_RowCommand" AutoGenerateColumns="true">
                                        </asp:GridView>

Thanks