protected override async void OnAppearing()
        {
            base.OnAppearing();
            setStatusError(false);
            using (await MaterialDialog.Instance.LoadingDialogAsync(message: "Load Data Provinsi"))
            {
                ListPropinsis = await patientServices.GetPropinsiServices();

                txtPropinsi.Choices = ListPropinsis;
            }

            if (!(newPatient4.vc_k_prop is null))
            {
                Propinsi propinsiSelected = ListPropinsis.Find(config => config.vc_kode == newPatient4.vc_k_prop);
                txtPropinsi.SelectedChoice = propinsiSelected;
            }
            if (!(newPatient4.vc_k_kota is null))
            {
                Kabupaten kabupatenSelected = ListKabupatens.Find(config => config.vc_kode == newPatient4.vc_k_kota);
                txtKabupaten.SelectedChoice = kabupatenSelected;
            }
            if (!(newPatient4.vc_kode_camat is null))
            {
                Kecamatan kecamatanSelected = ListKecamatans.Find(config => config.vc_kode == newPatient4.vc_kode_camat);
                txtKecamatan.SelectedChoice = kecamatanSelected;
            }

            //if (!(newPatient4.vc_kode_camat is null))
            //{
            //    Kecamatan kecamatanSelected = ListKecamatans.Find(config => config.vc_kode == newPatient4.vc_kode_camat);
            //    txtKecamatan.SelectedChoice = kecamatanSelected;
            //}
        }
        private async void txtPropinsi_ChoiceSelected(object sender, SelectedItemChangedEventArgs e)
        {
            var      picker   = (MaterialTextField)sender;
            Propinsi propinsi = (Propinsi)picker.SelectedChoice;

            newPatient4.vc_k_prop   = propinsi.vc_kode;
            newPatient4.VC_propinsi = propinsi.vc_propinsi;
            using (await MaterialDialog.Instance.LoadingDialogAsync(message: "Load Data Kabupaten"))
            {
                ListKabupatens = await patientServices.GetKabupantenByIdServices(propinsi.vc_kode);

                txtKabupaten.Choices = ListKabupatens;
            }
        }