public List <PairModel> GetDirectors() { List <PairModel> pairList = new List <PairModel>(); MediaDataSet.TabDirectorDataTable directorTable = mediaDAO.GetDirectors(); if (directorTable != null) { foreach (MediaDataSet.TabDirectorRow row in directorTable.Rows) { PairModel pair = PairModel.Parse(row); pairList.Add(pair); } return(pairList); } else { return(null); } }