title: How do I get the Array Item Type from Array Type in .net
body: <p>Say I have an <code>System.String[]</code> type object. I can query the type object to determine if it is an array </p>
  
  <pre><code>Type t1 = typeof(System.String[]);
  bool isAnArray = t1.IsArray; // should be true
  </code></pre>
  
  <p>However how do I get a type  object of the array item from t1</p>
  
  <pre><code>Type t2 = ....; // should be typeof(System.String)
  </code></pre>