Using Bing key

[IkerBerasaluce]

Hi,
I'm trying to use the Bing Hybrid map as my base map. I already got a Bing key and now I'm looking for information as how to make it work but I couldn't find anything for silverlight. It seems that I can use the three kind of mapa bases that Bing offers, so how can I tell the Hybrid the one I want using the key?

Thank you.

[DeminHu]

How about  LayerStyle="AerialWithLabels" ?

[IkerBerasaluce]

I tryed that, but we want to see the roads over the satellite pictures.
Anyway, thanks for the answer.

[DeminHu]

maybe you could use :

slider, change the image  and roads layer's transparency.