title: Update Multiple Rows in Entity Framework from a list of ids
body: <p>I am trying to create a query for entity framework that will allow me to take a list of ids and update a field associated with them. </p>
  
  <p>Example in SQL:</p>
  
  <pre><code>UPDATE Friends
  SET msgSentBy = '1234'
  WHERE id IN (1, 2, 3, 4)
  </code></pre>
  
  <p>How do I convert the above into entity framework?</p>