title: Razor and String.Format don't work with special characters
body: <p>I have a problem with Razor and String.Format. I have a parameter as follow:</p>
  
  <pre><code>@{
  string aktenHeader = Html.Raw(Model.Node.Aktenzeichen + string.Format("{0}" + Model.Node.Aktenkurzbezeichung, (Model.Node.Aktenzeichen != null &amp;&amp; Model.Node.Aktenkurzbezeichung != null ? " ./. " : ""))).ToString();    
  }
  </code></pre>
  
  <p>and I got the exception : Input string was not in a correct format.</p>
  
  <p>Please help me friends. Thanks</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>Model.Node.Aktenzeichen = "Akte"</p>
  
  <p>Model.Node.Aktenkurzbezeichung = "Test ${}" </p>
  
  <p>And I expected aktenHeader = "Schnulli ./. Test ${}"</p>