private void SetPersonListDataSource(ListBox list, List<InstallersWorks_Personalities> data) { list.DataSource = null; list.SelectedIndex = -1; list.DisplayMember = "FullName"; list.ValueMember = "Id"; if (data.Count>0) list.DataSource = data.OrderBy(o=>o!=null ? o.Fullname : "Сотрудник удален").ToList(); list.ResetBindings(); }