title: Adding DataColumn to DataTable
body: <p>I want to move the data from a <code>dataColumn</code> to a specific column in my <code>dataTable</code>. I am not sure how to specify what column within my <code>Datatable</code> I want to add the <code>datacolumn</code>.</p>
  
  <pre><code>        foreach (DataColumn col in dt.Columns)
          {
              dt1.Columns.Add(col);
          }
  </code></pre>
  
  <p>I receive an exception <code>Column 'X' already belongs to another DataTable.</code></p>