private void FillConclusionList()
        {
            using (var context = new MedicalClinicContext())
            {
                List <Conclusion> conclusions = context.Conclusion.Where(conc => conc.MedcardId == patient.MedcardId).ToList();

                foreach (var conclusion in conclusions)
                {
                    string   nameSurname = $"{conclusion.Appointment.Doctor.PersonalData.Surname} {conclusion.Appointment.Doctor.PersonalData.Name}";
                    string   speciality  = conclusion.Appointment.Doctor.Speciality.Name;
                    DateTime date        = conclusion.Appointment.DateTimeOfMeeting;

                    ElemOfList elem = new ElemOfList(conclusion.Id, nameSurname, speciality, date);

                    Conclusions.Items.Add(elem);
                }
            }
        }
        private void ConclusionClick(object sender, SelectionChangedEventArgs e)
        {
            if (Conclusions.SelectedValue == null)
            {
                return;
            }

            var        lv   = sender as ListView;
            ElemOfList elem = lv.SelectedItem as ElemOfList;
            int        appointmentId;

            using (var context = new MedicalClinicContext())
            {
                appointmentId = context.Conclusion.FirstOrDefault(conc => conc.Id == elem.ConclusionId).AppointmentId;
            }

            new ConclusionResultWindow(appointmentId).ShowDialog();
            Conclusions.SelectedItem = null;
        }