title: MVC open pdf file
body: <p>I have the following issue:
  I have a MVC application, in some action of some controller i'm generating a PDF file, the file is being generated on a specific path on the server. That action is being called on an action link of the view, when the user clicks that link, the action generated that PDF, everything fine until here.
  I want the page to show the dialog with my generated PDF file that says:</p>
  
  <p>Open - Save - Cancel (the tipical file dialog when you click a file)</p>
  
  <p>But without refreshing the page, only show the dialog when the user clicked the link.</p>
  
  <p>How could i do that? what should the action return to the view?
  Thanks.</p>