Redirect to another action with id
<p>In my ASP MVC controller I want to redirect to another controller and action with an <em>id</em>:</p>

<pre><code>int thisEvent = 20;
return Redirect("event/details/?id=" + thisEvent);
</code></pre>

<p>It should redirect to <strong>/event/details/?id=200</strong> or <strong>/event/details/20</strong> For some reason it is not working. </p>

<p>I get this error:</p>

<blockquote>
  <p>Redirect URI cannot contain newline characters</p>
</blockquote>