title: how to use IN operator in LINQ
body: <p>I have the list of ProjectId like <code>14,15,18</code> and i want to search those items from my datatable using linq.</p>
  
  <p>now i have created the query like</p>
  
  <pre><code>IEnumerable&lt;DataRow&gt; drProjList = from a in dtProj.AsEnumerable()
                                    where a.Field&lt;int&gt;("ProjectId")
                                          .ToString()
                                          .Contains(projFilter)
                                     select a;
  </code></pre>
  
  <p>but i am not getting the 0 elements.</p>
  
  <p>can any body suggest me any other way like <code>IN</code> operator in linq.</p>
  
  <p>thanks in advance</p>
  
  <p><strong>EDIT</strong>
  projFilter is the pure string which have the 14,15,18,... project ids.</p>