public static string titleNationality(string val)
        {
            string name = "";
            var    nameToNationality = CountryDictionary.listOfNationalitie();

            if (val != "" || val != "")
            {
                //Item Value in dictiona
                name = nameToNationality.FirstOrDefault(x => x.Value == val).Key;
            }
            return(name);
        }
        void guestNationalityDetailsPicker(string nationlity)
        {
            Nationality.Items.Clear();
            var nameToNationalityList = CountryDictionary.listOfNationalitie();

            foreach (string NationalityName in nameToNationalityList.Keys)
            {
                Nationality.Items.Add(NationalityName);
            }

            if (nationlity != "" || nationlity != "")
            {
                //Item value in dictionary
                string name = nameToNationalityList.FirstOrDefault(x => x.Value == nationlity).Value;

                //Index of item value in dictionary
                int index = nameToNationalityList.Values.ToList().IndexOf(name);

                //Set picker selecteditem index
                Nationality.SelectedIndex = index;

                //Set Identification Method to Update guest
                guestNationality = nationlity;
            }


            Nationality.SelectedIndexChanged += (sender, args) =>
            {
                if (Nationality.SelectedIndex == -1)
                {
                    guestNationality = nationlity;
                }
                else
                {
                    string nationalityName = Nationality.Items[Nationality.SelectedIndex];
                    guestNationality = nameToNationalityList[nationalityName];
                }
            };
        }