title: How to make LEFT JOIN in Lambda LINQ expressions
body: <p>How to make this expression as LEFT JOIN</p>
  
  <pre><code>var query = order.Items.Join(productNonCriticalityList,
      i =&gt; i.ProductID,
      p =&gt; p.ProductID,
      (i, p) =&gt; i);
  </code></pre>