title: Add the where clause dynamically in Entity Framework
body: <p>I have this sql statement</p>
  
  <pre><code>SELECT userID from users WHERE
  (name='name1' AND username='username1') OR
  (name='name2' AND username='username2') OR
  (name='name3' AND username='username3') OR
  ..........
  (name='nameN' AND username='usernameN')
  </code></pre>
  
  <p>How can I implement this statement with entity framework using LINQ?</p>