public void Applay()
        {
            DepartmentReader        reader = new DepartmentReader();
            List <ReadedDepartment> result = reader.ReadFile(InputFileName);

            if (selectall)
            {
                foreach (var r in result)
                {
                    r.Add = true;
                }
            }
            ReadedDepartments = new ObservableCollection <ReadedDepartment>(result);
        }