Ok. The short answer is
YES!. Hope I understood your situation.
I write a very simple solution to your question. You need to format this :)
You must view the source code that I prepared for your case. Comments on each line of code.
Download it here.
It's my spanish Blog, so trust on its content!
You must Build it on Visual Studio 2010, Silverlight 4 :D
Hope it helps you a lot!
Regards