title: (MVP Pattern) How to forward error messages from Presenter to View?
body: <p>I have a method where the user can search for a article number and if its available in the database the articlenumber gets bound to a BindingList. Now I want to let the user know if the article is not available in database. How do I do that the right way?</p>
  
  <p>Just pass the message errorMessage to my interface method?</p>
  
  <p>Presenter:</p>
  
  <pre><code>string errorMessage;
  _view.ErrorMessage(errorMessage);
  </code></pre>
  
  <p>View:</p>
  
  <pre><code>public void ErrorMessage(string errorMessage)
  {
        MessageBox.Show(errorMessage);
  }
  </code></pre>
  
  <p>Would you do it the same way? </p>