title: Is there any need to close a DbConnection if a using clause is used?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/5243398/will-a-using-block-close-a-database-connection">Will a using block close a database connection?</a>  </p>
  </blockquote>
  
  
  
  <p>Is <code>db.Close()</code> unnecessary in the following?</p>
  
  <pre><code>using (DbConnection db = GetDbConnection())
  {
     // do data-access stuff
     // ...
  
     db.Close();
  }
  </code></pre>