public PatientForm()
        {
            InitializeComponent();
            WpfWebClient.ServiceReferenceEHEC.ServiceClient client = new WpfWebClient.ServiceReferenceEHEC.ServiceClient();


            // Retrieve all salutations and save them into "salutationlist"
            List <WpfWebClient.ServiceReferenceEHEC.Salutation> salutationlist = new List <ServiceReferenceEHEC.Salutation>(client.GetSalutations());

            // Display all salutations with name in Combobox
            ComboBoxSalutations.ItemsSource       = salutationlist;
            ComboBoxSalutations.DisplayMemberPath = "Name";

            // Retrieve all genders and save them into "genderlist"
            List <WpfWebClient.ServiceReferenceEHEC.Gender> genderlist = new List <ServiceReferenceEHEC.Gender>(client.GetGenders());

            // Display all genders with name in Combobox
            ComboBoxGenders.ItemsSource       = genderlist;
            ComboBoxGenders.DisplayMemberPath = "Name";

            // Retrieve all cities and save them into "citylist"
            List <WpfWebClient.ServiceReferenceEHEC.City> citylist = new List <ServiceReferenceEHEC.City>(client.GetCities());

            // Display all cities with name in Combobox
            ComboBoxCities.ItemsSource       = citylist;
            ComboBoxCities.DisplayMemberPath = "Name";

            // Retrieve all salutations and save them into "countrylist"
            List <WpfWebClient.ServiceReferenceEHEC.Country> countrylist = new List <ServiceReferenceEHEC.Country>(client.GetCountries());

            // Display all countries with name in Combobox
            ComboBoxCountries.ItemsSource       = countrylist;
            ComboBoxCountries.DisplayMemberPath = "Name";


            client.Close();
        }