title: After success submit show welcome-modal
body: <p>I have form </p>
  
  <p><code>@using (Html.BeginForm("Register", "Account", FormMethod.Post, new {id = "registrationForm"}))
  {...}</code></p>
  
  <p>where i put some data(email, password, etc.)</p>
  
  <p>Also i have method for this form :</p>
  
  <p><code>[HttpPost]
   [AllowAnonymous]
   [ValidateAntiForgeryToken]
   public ActionResult Register(RegisterViewModel model)
   {... return RedirectToAction("Index");}</code></p>
  
  <p>In that method i manage model (try to create new user) and if all is success. redirect to action "Index".</p>
  
  <hr>
  
  <p><strong>Issue</strong> : i need to show bootstrap modal with some text "Welcome..." after i create new user but before redirect.
  How can i do it? </p>
  
  <hr>
  
  <p>I try to call <code>ajax</code> submit for that form (only for success action to show that modal, but no success)</p>