WPF

<Window x:Class="WpfApplication3.bindingListBoxTOstring"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="bindingListV" Height="300" Width="300"
        DataContext="{Binding RelativeSource={RelativeSource Self}}"
        >
    <Grid>


        <ListView Name="lv" ItemsSource="{Binding ListBoxCollection, UpdateSourceTrigger=PropertyChanged}" Margin="12,0,128,50" SelectionChanged="lv_SelectionChanged">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="profilo" Width="200" 
                                            DisplayMemberBinding="{Binding nome, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                </GridView>
            </ListView.View>
        </ListView>
        <Label Content="Cambia valore" Height="28" HorizontalAlignment="Left" Margin="164,23,0,0" Name="label1" VerticalAlignment="Top" Width="102" />
        <TextBox Height="32" HorizontalAlignment="Left" Margin="154,56,0,0" Name="textBox1" VerticalAlignment="Top" Width="114" />
        <Button Content="cambia" Height="23" HorizontalAlignment="Left" Margin="177,107,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
    </Grid>
</Window>

namespace WpfApplication3
{
    public partial class bindingListBoxTOstring : Window
    {
        
        ObservableCollection<ListBoxData> _ListBoxCollection =
            new ObservableCollection<ListBoxData>();



        public bindingListBoxTOstring()
        {
            InitializeComponent();
            //DataContext = this;
            _ListBoxCollection.Add(new ListBoxData { nome = "netgear" });
            _ListBoxCollection.Add(new ListBoxData { nome = "alice13" });
        }


        public ObservableCollection<ListBoxData> ListBoxCollection
        { get { return _ListBoxCollection; } }

        public class ListBoxData
        {
            public string nome { get; set; }
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            ListBoxData x = lv.SelectedItem as ListBoxData;
            x.nome = (textBox1.Text) != string.Empty ? (textBox1.Text) : string.Empty ;
        }

        private void lv_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            ListBoxData x = lv.SelectedItem as ListBoxData;
            textBox1.Text = x.nome;
        }
    }
}

<BitmapImage x:Key="CameraImage" CreateOptions="IgnoreImageCache" CacheOption="OnLoad" />

UriSource="pack://siteoforigin:,,,/Resources/Camera32x32.png"

UriSource="pack://application:,,,/Resources/Camera32x32.png"

// Attempt to create an instance of the proxy
bool serviceRunning = true;
try
{
    Proxy = new MyAppServiceRef.MyAppServiceClient();
}
catch (Exception e)
{
    serviceRunning = false;
}
// Now check to see if the service is running
try
{
    serviceRunning = !Proxy.ServiceRunning();
}
catch (Exception e)
{
    serviceRunning = false;
}

// If the service is not running, then exit the app
if (!serviceRunning)
{
    string message = "The service appears to not be running. Please check the service. " + ApplicationTitle + " will now exit.";
    MessageBox.Show(message, "Service Error", MessageBoxButton.OK, MessageBoxImage.Stop);
    Application.Current.Shutdown();
}

namespace WpfApplication22
{
public partial class App : Application
{


[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

private const int APPCOMMAND_XXX = 0x80000;

private void MetodoMute(object sender, EventArgs e)
// Mute
        {
            SendMessageW(this.Handle, WM_APPCOMMAND, this.Handle,
                (IntPtr)APPCOMMAND_xxx);

        }
}
}

private void button4_Click(object sender, RoutedEventArgs e)
{
    App x = new App();
    x.MetodoMute(new WindowInteropHelper(this).Handle);

}