title: windows phone 8 custom message box
body: <p>I want to implement a dialog(or alert dialog) like extending Dialog component in Android.</p>
  
  <p>In phone 8 message box only allows showing title and message. I would like to add new views like button, images etc to my dialog. How can i achive this, or is it possible?</p>
  
  <p>thnx.</p>