title: Single header row for child gridview
body: <p>I have a nested gridview that is working wonderfully with one seemingly simple problem. I don't want the headers repeated on each child gridview. I would like the headers for the child gridview to be displayed in the parent gridview's  TemplateField HeaderText area. I cannot seem to find a good way to do this.</p>
  
  <p>For Instance, I currently have this....</p>
  
  <pre><code> gv1Header 
  
             gv2Header gv2Header
  
   data         data     data
                data     data
  
             gv2Header gv2Header
   data         data     data     
                data     data
  </code></pre>
  
  <p>But I would like to see this... </p>
  
  <pre><code>gv1Header    gv2Header   gv2Header
     data         data        data 
                  data        data
     data         data        data
                  data        data
  </code></pre>
  
  <p>Any ideas? Thanks very much.</p>