title: How to get data between Table and View without relation with linq?
body: <p>I have two <code>Entities</code> that one of them is <code>Table</code> and another one is <code>View</code> and I want to get result from them. There is no logical relation between these entities.<br>
  My Linq query is:<br></p>
  
  <pre><code>        var eduStandard = App.Api.EduStandardService.Instance().Data();
          var eduPost = App.Api.EduStandardPostService.Instance().Data();
          var result=from es in eduStandard
                     join ep in eduPost on es.StandardID equals ep.StandardID
                     join vp in Data() on ep.PostCode equals vp.CAPACITY_CODE
  </code></pre>
  
  <p>but compiler throw error from second <code>join</code> and send this error:<br></p>
  
  <blockquote>
    <p>The type of one of the expressions in the join clause is incorrect.  Type inference failed in the call to 'Join'.  </p>
  </blockquote>