title: Open wpf menu upwards
body: <p>I am trying to put a menu in the statusbar that is at the bottom of a custom user control.</p>
  
  <p>When I click on the menu, it opens downwards, as usually happens with menus, with the result that the menu exits from the usercontrol.</p>
  
  <p>How can I force the menu to open above the statusbar? </p>