public Dorsals() { InitializeComponent(); _competitionService = new CompetitionService(); _table = _competitionService.ListNotRealizedCompetitions(); var index = _table.Columns.IndexOf("Competition_Name"); var list = new List <string>(); _ids = new List <int>(); foreach (DataRow row in _table.Rows) { _ids.Add(int.Parse(row[_table.Columns.IndexOf("Competition_ID")].ToString())); list.Add(row[_table.Columns.IndexOf("Competition_Name")].ToString()); } CompetitionList.ItemsSource = list; }