title: Change Pushpin visibility based on Zoom level in the Bing Maps control for Silverlight
body: <p>So i'm pretty new to using the Bing Maps control in Silverlight, but I have managed to get a collection of pushpin objects (each with lat/long values) plotted on the map.</p>
  
  <p>My question now is, how can I change the visibility of these based on the current zoom level?. </p>
  
  <p>Say I have 10 locations scattered across the UK, I only want them visible when the UK is in the current view, not when the whole world is in view...</p>
  
  <p>I realise this is a very general question but any help would be fantastic!</p>
  
  <p>Kris</p>