title: How to do a primary key to equal to an array of int[] in LINQ?
body: <p>I am trying to select values where the primary ID which is an int is not equal to any ints in an array int[].</p>
  
  <p>Here is my current code:</p>
  
  <pre><code>Where(c =&gt; !c.CountryId.Equals(model.CampaignCountryIds))
  </code></pre>
  
  <p>model.CampaignCountryIds is of type int[]?</p>
  
  <p>Is there any easy way to do this? This error is stemming from that:</p>
  
  <pre><code>Comparison operators not supported for type 'System.Nullable`1[System.Int32][]'.
  </code></pre>
  
  <p>Thanks,
  Darren</p>