title: How to set multiple field for HyperLinkColumn in a DataGrid using DataNavigateUrlField
body: <p>I am trying to create a DataGrid with a HyperLinkColumn that uses two fields for the url.<br>
  I am using Vb, VS 2005, .net 2</p>
  
  <p>I am getting this exception:<br>
  "A field or property with the name 'PrimKey,IsCommercial' was not found on the selected data source."</p>
  
  <p>I am not sure why, I have check the following.</p>
  
  <ul>
  <li>The fields are all spelt correctly.</li>
  <li>The fields are in the datasource.</li>
  <li>The fields all work as simple Bound Columns.</li>
  </ul>
  
  <p>Here is an example of what I am trying to do.</p>
  
  <pre><code>&lt;asp:HyperLinkColumn SortExpression="LogNo" DataNavigateUrlField="PrimKey, IsCommercial" DataNavigateUrlFormatString="../Clarifications.aspx?PrimKey={0}&amp;IsCommercial={1}" DataTextField="LogNo" HeaderText="LogNo" ItemStyle-Wrap="false"&gt;&lt;/asp:HyperLinkColumn&gt;
  </code></pre>