title: How do I use Union in linq (vb.net)?
body: <p>I know how to call the <a href="http://msdn.microsoft.com/en-us/library/system.linq.enumerable.union.aspx" rel="nofollow noreferrer">Union</a> extension method, e.g.</p>
  
  <pre><code>Dim r = productFirstChars.Union(customerFirstChars)
  </code></pre>
  
  <p>However I do I do this with the Linq syntax, e.g. </p>
  
  <pre><code>from productFirstChars select ????
  </code></pre>