What's the opposite of "is"?
<pre><code>if(myVariable is SomeType)
</code></pre>

<p>Out of nothing but curiosity, what's the opposite of that?  I want to do something like:</p>

<pre><code>if(!myVariable is SomeType)
if(myVariable is not SomeType)
</code></pre>

<p>Neither compile.</p>

<p>Given that "is" is a non-searchable word in most engines, this has been a hard one to find an answer to.</p>

<blockquote>
  <p><strong>Duplicate:</strong> </p>
  
  <p><a href="http://stackoverflow.com/questions/811614/c-is-keyword-and-checking-for-not">C# : ‘is’ keyword and checking for Not</a></p>
</blockquote>
