title: Convert IEnumerable<DataRow> to EnumerableRowCollection<DataRow> or DataView
body: <p>How i can <code>result</code> to <code>EnumerableRowCollection&lt;DataRow&gt;</code> or <code>DataView</code>?</p>
  
  <pre><code>DataTable table1 = /*something*/ ;
  DataTable table2 = /*something*/ ;
  DataTable table3 = /*something*/ ;
  
  IEnumerable&lt;DataRow&gt; result = (from t1 in table1.AsEnumerable() join 
                                      t2 in table2.AsEnumerable() on t1.Field&lt;int&gt;("id") equals t2.Field&lt;int&gt;("t1id") join
                                      t3 in table3.AsEnumerable() on t2.Field&lt;int&gt;("t3id") equals t3.Field&lt;int&gt;("id")
                                 where 666.Equals(t3.Field&lt;int&gt;("id"))
                                select t1);
  </code></pre>
  
  <p>thanks</p>