title: Infragistics UltraTree with checkboxes in selected cells
body: <p>I use the <strong>Infragistics UltraTree control</strong> in a Winforms application as a treelist (<strong>outlook mode</strong>). The problem with the outlook mode is, that it is not possible to have node checkboxes. So my <strong>workaround</strong> is, to use a own <strong>column for the checkboxes</strong>. </p>
  
  <p>My question is now, how can I achive, that there are only <strong>checkboxes in specific cells</strong> (for example only in cells, which belongs to tree level 2)?</p>
  
  <p>At http://news.infragistics.com/forums/p/11661/44028.aspx#44028 there is a solution with ultraCheckEditor, but first, the EditorControl is a "obsolete"-control and I don't know how to include ultraCheckEditor!?!? Although I have <code>using Infragistics.Win.UltraWinEditors</code> the class is still not available!?!?</p>