title: Should 'using' be inside the namespace or outside?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/125319/should-usings-be-inside-or-outside-the-namespace">Should Usings be inside or outside the namespace</a>  </p>
  </blockquote>
  
  
  
  <p>Are there any technical reasons for preferring this </p>
  
  <pre><code>namespace Foo
  {
       using System;
       using System.IO;
  </code></pre>
  
  <p>instead of the default</p>
  
  <pre><code>using System;
  using System.IO;
  
  namespace Foo
  {
  </code></pre>