title: LINQ to DataTable
body: <p>I have big DataTable I want to get subset of this DataTable represented as DataTable either. 
  Briefly saying how do I select particular columns in DataTable.</p>
  
  <p>I was trying something like this but it doesn't work...</p>
  
  <pre><code>DataTable dTable = new DataTable();
  ...
  ...
  ...
          DataTable dt = from field in dTable
                         where field.Field&lt;string&gt;("Manager")
                         where field.Field&lt;string&gt;("Phone")
                         select field;
  </code></pre>
  
  <p>Maybe my code is wrong, how do I get "managers" and "Phone" columns from one DataTable to another without looping thought it?</p>