title: Linq result if null then zero
body: <p>How do I write something like this:</p>
  
  <pre><code>            int result = database
                  .Where(x =&gt; x.Name == "Criteria")
                  .Sum(x =&gt; x.Count)) ?? 0;
  </code></pre>
  
  <p>Where it will return the sum value unless linq does not find anything in which case it will return 0.</p>
  
  <p>EDIT:  The field is not null-able.</p>
  
  <p>EDIT 2:  I am using Entity Framework.</p>