title: Use DataColumn values as source for ValueList on UltraGridColumn
body: <p>Is there a way I can use a DataColumn from a DataTable as the <code>ValueList</code> for an UltraGrid column?</p>
  
  <p>I have the column style set to <code>DropDownList</code>. The question is, what do I use for <code>ValueList</code>?</p>
  
  <pre><code>ultraGrid1.DisplayLayout.Bands[0].Columns["col"].Style = ColumnStyle.DropDownList;
  ultraGrid1.DisplayLayout.Bands[0].Columns["col"].ValueList = ???
  </code></pre>