title: is there a convenient way to filter by a group column in XtraGrid GridView without displaying that column?
body: <p>this is a continuation of my previous question <a href="https://stackoverflow.com/questions/5600160/is-there-off-the-shelf-convenient-way-to-filter-by-a-group-column-in-xtragrid-gri">is there off-the-shelf convenient way to filter by a group column in XtraGrid GridView?</a> . </p>
  
  <p>I was told to set GridView.OptionsView.ShowGroupedColumns to true, but that simply sucks. I don't want to waste horizontal space in my grid showing the group columns - it is sufficient to show them as group headers. I only want to have nice filter textboxes for those columns on top.</p>
  
  <p>Any other suggestions short of rolling my own?</p>