title: How can i know if this is the first time in the action?
body: <p>I have a MVC project. one of my Models are called 'ASR'. in 'ASRController' i have  a few actions, Including: <code>public ActionResult Index()</code> which is a Get.</p>
  
  <p>The <code>Index()</code>Action happens on the first display of the page (Get). I want to make it possible that inside this Action i can diffrenciate and write different pieces of code for the first time this Action is being called upon in my entire running of the project and other times (In other words,  if its the first time that the View of this page is shown - Should do so and so... and if we already had that view shown and then we went somewhere else in the project ('website') and came back to this page it should do somthing else...)
  I tried searching to find an answer, but no luck...
  Can someone please help me with this?
  Thank you</p>