interface Infragistics.Win.UltraWinTree.Design.ITreeDesignInfo:

   def public property ForceSpanResizeMode as logical
      get.
      set.

   def public property PreventColumnOverlap as logical
      get.
      set.

   def public event BeforeDataSourceChanged signature void (input sender as System.Object, input e as Infragistics.Win.UltraWinTree.Design.DataSourceEventArgs).

end interface.