How to correctly represent a whitespace character
<p>I wanted to know how to represent a whitespace character in C#. I found the empty string representation <code>string.Empty</code>. Is there anything like that that represents a whitespace character?</p>

<p>I would like to do something like this:</p>

<pre><code>test.ToLower().Split(string.Whitespace)
//test.ToLower().Split(Char.Whitespace)
</code></pre>
