My pushpins in bingmaps for WP7 are all black. Why?

I am trying to work with WP7 and Bingmaps.

I have this code

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
    <my:Map Height="389" HorizontalAlignment="Left" Margin="28,28,0,0" Name="map1" VerticalAlignment="Top" Width="409" />
</Grid>

and

    public MapInfo()
    {
        InitializeComponent();


        GeoCoordinate lHamburg = new GeoCoordinate(53.550556, 9.993333);

        //map1.Radius = 5000;
        map1.ZoomLevel = 10.0;
        map1.Center = lHamburg;
        map1.CredentialsProvider = new ApplicationIdCredentialsProvider(APPLICATION_ID);

        //Add a pin to the map
        Pushpin pushpin = new Pushpin();
        Location loc开发者_开发技巧ation = new Location();
        location.Latitude = 53.550556;
        location.Longitude = 9.993333;
        pushpin.Location = location;

        map1.Children.Add(pushpin);
    }

But my pushpin is black, without any style. Did I forget something?

Thanks, Oscar

Edit: it looks like that they ARE black. I would have to set some style to it or something like that. Anyone could give me some hints of how to add a simple style? Very simple, maybe only change the color, or make it round like google maps or something like that.

Thanks, Oscar

You can use a style for example:

<Style TargetType="my:Pushpin">
    <Setter Property="Background"
            Value="White" />
</Style>

or directly set color while creating them:

    //Add a pin to the map
    Pushpin pushpin = new Pushpin();
    Location location = new Location();
    location.Latitude = 53.550556;
    location.Longitude = 9.993333;
    pushpin.Location = location;
    pushpin.Background = new SolidColorBrush(Colors.Red);

    map1.Children.Add(pushpin);

[NOTE: I used background property here. You may need to set different property/properties to change it's appearance to needed state.]

The following MSDN exercise will provide you with all the information that you need: Exercise 2: Handling and Customizing Pushpins. Scroll down to item 5 which is where the customizations of pushpins begins.