private void Salvar(object sender, RoutedEventArgs e)
        {
            try
            {
                Client       selectedClient    = (Client)ClientName.SelectedValue;
                ComboBoxItem selectedType      = (ComboBoxItem)Type.SelectedValue;
                ComboBoxItem selectedCardBrand = (ComboBoxItem)CardBrand.SelectedValue;

                string type      = (string)selectedType.Content;
                string cardBrand = (string)selectedCardBrand.Content;

                CardValidation.Validation(CardholderName.Text, Number.Text, ExpirationDate.Text, cardBrand, type, selectedClient.IdClient);

                Card card = new Card()
                {
                    CardholderName = CardholderName.Text,
                    CardNumber     = Number.Text,
                    ExpirationDate = (DateTime)ExpirationDate.SelectedDate,
                    CardBrand      = cardBrand,
                    Password       = Password.Password,
                    Type           = type,
                    IdClient       = selectedClient.IdClient,
                    Status         = 1
                };

                string status = OldButGoldService.PostRequestCard(card);
                MessageBox.Show(status);
                this.NavigationService.Navigate(new Uri("Pages/Index.xaml", UriKind.Relative));
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }