title: How call Async methods in Controller MVC.NET
body: <p>I have used before SignalR and ASP.net MVC.</p>
  
  <p>I have two buttons in MVC.net named respectively "Cancel" and "Save".</p>
  
  <p>In the Controller where the "Save" button is, I have a "<code>ForEach</code>" and a "<code>ForEach</code>" </p>
  
  <p>I have tried using <code>ProgressBar</code> in define in MainHub.</p>
  
  <p>The <code>ForEach</code> is defined so that <code>ProgressBar</code> is incremented every iteration within the loop.</p>
  
  <p>Question:</p>
  
  <p>How to call <code>async</code> method on "Cancel" which can break out of "ForEach" on the controller where the "Save" button is?</p>
  
  <p>The <code>Save</code> button invokes an AJAX JQuery once pressed.</p>