Estou tentando adicionar uma lista de contatos básica ao meu aplicativo.

Até agora, o aplicativo consulta o armazenamento de contatos e exibe todos em uma lista.

O que eu preciso é de uma estrutura de dados contendo o nome e o número de cada contato que o usuário selecionou da lista.

Eu adoraria ver suas ideias. Eu tenho certeza que será algo simples que eu perdi, mas eu tentei muito agora estou muito confuso.

Aqui está o snippet de código relevante e o XAML acompanhante. Muito obrigado pelo seu tempo. C # ATUALIZADO

namespace appNamespace
{
    public partial class contact : PhoneApplicationPage
    {
        public class CustomContact
        {
            public string Name { get; set; }
            public string Number { get; set; }

            public CustomContact()
            {
            }

            //CTOR that takes in a Contact object and extract the two fields we need (can add more fields)
            public CustomContact(Contact contact)
            {
                Name = contact.DisplayName;
                var number = contact.PhoneNumbers.FirstOrDefault();
                if (number != null)
                    Number = number.PhoneNumber;
                else
                    Number = "";
            }
        }

        public contact()
        {
            InitializeComponent();
        }

        private void showContacts(object sender, RoutedEventArgs e)
        {
            Contacts cons = new Contacts();

            //Identify the method that runs after the asynchronous search completes.
            cons.SearchCompleted += new EventHandler<ContactsSearchEventArgs>(Contacts_SearchCompleted);

            //Start the asynchronous search.
            cons.SearchAsync(String.Empty, FilterKind.None, "Contacts Test #1");
        }

        void Contacts_SearchCompleted(object sender, ContactsSearchEventArgs e)
        {
            //Do something with the results.
            MessageBox.Show(e.Results.Count().ToString());
            try
            {
                //Bind the results to the user interface.
                ContactResultsData.DataContext = e.Results;

            }
            catch (System.Exception)
            {
                //No results
            }

            if (ContactResultsData.Items.Any())
            {
                ContactResultsLabel.Text = "results";
            }
            else
            {
                ContactResultsLabel.Text = "no results";
            }
        }

        public void saveContacts(object sender, RoutedEventArgs e)
        {
            List<CustomContact> listOfContacts = new List<CustomContact>();

            listOfContacts = e.Results.Select(x => new CustomContact()
            {
                Number = x.PhoneNumbers.FirstOrDefault() != null ? x.PhoneNumbers.FirstOrDefault().PhoneNumber : "",
                Name = x.DisplayName
            }).ToList();
        }

        private void ContactResultsData_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            Contact contact = ContactResultsData.SelectedItem as Contact;
            if (contact != null)
            {
                CustomContact customContact = new CustomContact(contact);
            }
        }

    }
}

XAML

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <StackPanel Height="Auto" Width="Auto" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0,0,0,10" >

                <TextBlock Name="ContactResultsLabel" Text="results are loading..." Style="{StaticResource PhoneTextLargeStyle}" TextWrapping="Wrap" />

                <ListBox Name="ContactResultsData" ItemsSource="{Binding}" Height="436" Margin="12,0" SelectionMode="Multiple" >
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <TextBlock Name="ContactResults" FontSize="{StaticResource PhoneFontSizeMedium}" Text="{Binding Path=DisplayName, Mode=OneWay}" />
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </StackPanel>
            <Button x:Name="showButton" Content="Show Contacts" HorizontalAlignment="Left" VerticalAlignment="Top" Width="218" Height="90" Margin="0,531,0,0" Click="showContacts"/>
            <Button x:Name="saveButton" Content="Save Contacts" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="238,531,0,0" Width="218" Height="90" Click="saveContacts"/>
        </Grid>