title: (string)reader[0] vs Convert.ToString(reader[0])
body: <p>what's better</p>
  
  <pre><code>var s =  (string)reader[0]  
  </code></pre>
  
  <p>or </p>
  
  <pre><code>var s = Convert.ToString(reader[0])
  </code></pre>
  
  <p>?</p>