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POBinding listbox with MVVM Windows Phone
 

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    <p>Hi i'm new using MVVM and i'm trying to binding a listbox but it doesn't work. Here's my code</p> <p><strong>Model</strong></p> <pre><code> public class Musicmodel : INotifyPropertyChanged { //variables privadas private String _artista; private Uri _href; private String _informacion; private Double _Dvalue; public String artista { get { return this._artista; } set { this._artista= value; this.RaisePropertyChanged("artista"); } } public Uri href { get { return this._href; } set { this._href = value; this.RaisePropertyChanged("href"); } } public String informacion { get { return this._informacion; } set { this._informacion = value; this.RaisePropertyChanged("informacion"); } } public Double Dvalue { get { return this._Dvalue; } set { this._Dvalue = value; this.RaisePropertyChanged("Dvalue"); } } public event PropertyChangedEventHandler PropertyChanged; private void RaisePropertyChanged(string propertyName) { if (this.PropertyChanged != null) { this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } } } </code></pre> <p><strong>ViewModel</strong></p> <pre><code>public class DownloadFileViewModel : INotifyPropertyChanged { private WebClient clienteDownload; private ObservableCollection&lt;Model.Music&gt;_musicSource= new ObservableCollection&lt;Model.Music&gt;(); public ObservableCollection&lt;Model.Music&gt; musicSource { get { return this._musicSource; } set { this._musicSource = value; RaisePropertyChanged("musicSource"); } } private int index = 0; //request para descargar la canción public void request(Model.Musicmodel item) { this.clienteDownload = new WebClient(); this.clienteDownload.DownloadProgressChanged += new DownloadProgressChangedEventHandler(clienteDownload_DownloadProgressChanged); //agregamos el item al music this.musicSource.Add(item); this.clienteDownload.OpenReadAsync(this.musicSource[index].href); } private void clienteDownload_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e) { this.musicSource[index].Dvalue=(double)e.ProgressPercentage; } public event PropertyChangedEventHandler PropertyChanged; private void RaisePropertyChanged(string propertyName) { if (this.PropertyChanged != null) { this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } } } </code></pre> <p><strong>View</strong></p> <pre><code> &lt;ListBox x:Name="list" ItemsSource="{Binding musicSource}"&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;StackPanel Orientation="Vertical"&gt; &lt;TextBlock Text="{Binding artista}"/&gt; &lt;ProgressBar Value="{Binding Dvalue}"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; &lt;/ListBox&gt; </code></pre> <p><strong>Code Behind</strong></p> <pre><code> protected override void OnNavigatedTo(NavigationEventArgs e) { DownloadFileViewModel download = new DownloadFileViewModel(); Model.Music newMusic = new Model.Music() { href = new Uri("http://media1.li.ru/b/4/mp3/2/95366/953662_14Friday_Im_In_Love.mp3", UriKind.Absolute), artista = "the cure" }; download.request(newMusic); this.DataContext = download; base.OnNavigatedTo(e); } </code></pre> <p>I've debuged this and the download works fine and my ObservableCollection fills correctly whithout any problem but when i try to binding my listbox fails. please what do i'm doing wrong? thanks </p>
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