private void SetTechncicianList() { try { List <string> technicianList = new List <string> { }; technicianList.Add("-- Unassigned --"); foreach (Technician t in technicianController.GetTechnicians()) { technicianList.Add(t.TechnicianName); } technicianComboBox.DataSource = technicianList; } catch (Exception ex) { MessageBox.Show(ex.Message, ex.GetType().ToString()); } }