title: Entity Framework cast to ObjectSet
body: <p>I'm pretty new to Entity Framework and I have a question.
  Is it possible to cast/convert a type var to a strongly typed ObjectSet.</p>
  
  <p>For example I would like to do something like this (this is just an example from my head, not the real code):</p>
  
  <pre><code>var member = from item in member
                  where (age == 30)
                  select item;
  
  
  EF.Member mbr = (EF.Member)member;   // here I would like to cast/convert
  </code></pre>
  
  <p>Thanks!</p>