Drawing a polygon on several maps

Question

Hello,
I'm drawing a polygon on my map, in WPF. Everything's fine, but the problem is when i zoom out, i can see other maps, like if they're added after the principal and the polygon isn't drawn on those.
My questions are : Is it possible to draw on several maps at the same time? And how to do it?
Thanks
Max

Answer 1

I guess the second option is the one that i need, but it doesn't work for me. I took the exemple in the msdn page of "Adding shapes to the map". I modified it so it can do what i want, but it tells me that he can't load "Microsoft.Maps.MapControl.WPF.pdb".
I've searched everywhere but can't find any references to this error.
Here's the code:
MapTileLayer layer = new MapTileLayer();MapPolygon polygon = new MapPolygon();
polygon.Fill = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Blue);
polygon.Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Colors.Green);
polygon.StrokeThickness = 5;
polygon.Opacity = 0.7;
polygon.Locations = new LocationCollection() { new Location(47.6424,-122.3219),
new Location(47.8424,-122.1747),
new Location(47.5814,-122.1747)};
layer.Children.Add(polygon);
myMap.Children.Add(layer);