Carrega (popula) combobox (dropdownlist) no sharepoint

SPList list = SPContext.Current.Web.Lists["Nome da Lista"];

             SPListItemCollection items = list.Items;               

ListItem Modelo;

             DropDownList drp;

                //Popula dropdownlist Modelo Origem

                drp = cmbModeloOrigem;

                foreach (SPListItem item in items)

                {

                    Modelo = new ListItem((string)item["Nome da coluna"],

                        item["ID"].ToString());

                    drp.Items.Add(Modelo);

                }