private void simpleButtonHistoryPrescription_Click(object sender, EventArgs e)
        {
            Appointment appointment = GetFocusedHistoryAppointment();

            if (appointment != null)
            {
                memberMyAppointmentPrescription = new FormMemberMyAppointmentPrescription(appointment);
                memberMyAppointmentPrescription.ShowDialog();
            }
        }
        private void gridViewAppointmentHistory_DoubleClick(object sender, EventArgs e)
        {
            Appointment appointment = GetFocusedAppointmentHistory();

            if (appointment != null)
            {
                memberMyAppointmentPrescription = new FormMemberMyAppointmentPrescription(appointment);
                memberMyAppointmentPrescription.ShowDialog();
            }
        }