title: Success message from Controller to View
body: <h2>The goal</h2>
  
  <p>I want to display in my view some message when some user is added.</p>
  
  <h2>The problem</h2>
  
  <p>When something goes wrong in our model, there is a method (<code>ModelState.AddModelError</code>) to handle unsuccessful messages. But, when the things go okay, how can we handle a message to the user saying that his action was a success?</p>
  
  <p>I found <a href="https://stackoverflow.com/questions/4684196/asp-net-mvc-show-success-message">this thread</a> that provides a solution, but about three years passed and I need to know: there's not another way, perhaps more mature? Not that this is not, but we still deal with messages of success on this same way?</p>