Ho to use MediaElement with relative URL in Windows Phone 7.1?

问题

I proved everything but this code does not run in Windows Phone 7.1 private MediaElement media;

private MediaElement media;
    // Costruttore
    public MainPage()
    {
        this.InitializeComponent();

        media = new MediaElement();
        media.Source = new Uri("Risorse/Brani/00 Mai 1771.mp3", UriKind.Relative);
        media.Play();

    }

The file I mentioned exists and no error is thrown...

回答1:

The MediaElement control must be put into the visual tree. You can accomplish this by placing the element in xaml

<MediaElement x:Name="MyMedia"/>

Or in code

media = new MediaElement();
LayoutRoot.Children.Add(media)

Once it is in the visual tree, you will be able to play.

来源：https://stackoverflow.com/questions/15326878/ho-to-use-mediaelement-with-relative-url-in-windows-phone-7-1