asp.net dropdownlist multi coloum

hi frd,
i want to use multicoloum from database.

 string sql2 = "select xorg from caxcus";         DataSet ds9 = DataAccess.GetDataSet(sql2);         DropDownList1.Text = "-select-";         foreach (DataRow dr1 in ds9.Tables[0].Rows)         {             DropDownList1.Items.Add(dr1["xorg"].ToString());                     }

how can i use multi coloum in dropdownlist.
any help.
thanks
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