title: How to get Type of Nullable<Enum>?
body: <p>How can you do something like the following in C#?</p>
  
  <pre><code>Type _nullableEnumType = typeof(Enum?);
  </code></pre>
  
  <p>I guess a better question is why can't you do that when you can do this:</p>
  
  <pre><code>Type _nullableDecimalType = typeof(decimal?);
  </code></pre>