title: "Argument data type ntext is invalid for argument 1 of len function" error
body: <p>I'm using entity framework and I write this code to get some result from DB:</p>
  
  <pre><code>ReviewsDBEntities DB = new ReviewsDBEntities();  
  var result=DB.Review.Where(r =&gt; r.ReviewText.Length &gt; 200);
  </code></pre>
  
  <p>But I get this error as an inner error: "Argument data type ntext is invalid for argument 1 of len function"</p>
  
  <p>I looked it up, and I found out that because the type of ReviewText is defined as ntext, the function Len won't run it on the Database side. Now, I don't know how I can change the code to get ReviewTexts with Length more than 200.</p>