title: WPF and Prism View Overlay
body: <p>I need some help with overlaying views using the prism framework.Its a little more complexed than that so let me explain.I could be over-thinking this as well :D</p>
  
  <p>i have shell (wpf window) and i have 2 views(A &amp; B - both usercontrols) in a module.
  when the shell loads it loads view A. On view A i have a button to "popup" view B
  for some user input. so naturally i would think to some sort of modal window/control, maybe even a popup. however the problem i face with the popup is that when i move the shell the popup remains fixed and it doesnt block events in view A. I've tried disabling  view A to stop events being fired and i've also tried to use a  to get the view B move with the shell. Only the canvas works but i now need a way to block it tho'. Is there anyway i can overlay a view on top of another view with prism? or how does everyone else create modal popups with prism &amp; wpf? any advise or pointers would be greatly appreciated. </p>