I have a BO on my form which uses a few other BOs to get property and the like.  I would like to have properties on my primary BO which point to properties on the secondary BO.  For example if I have a secondary BO called Clients which is linked by the ClientKey on the primary/seconday BO, and want to get the Client Description I would have a property like this:

Public ReadOnly Property ClientDescription as String
  Get
    Return Clients.Description
  End Get
End Property

The question I have is how I keep Clients looking at the right record when I am navigating around in the primary BO.  I fill the Clients BO with all clients in the Fill of the primary BO and I have some code in the Navigated and CurrentDataTableRefilled event handlers to navigate Clients to the correct primary key when the primary BO record changes.  

My problem is that when I get into the Navigated event my Clients.Count is 0.  When it starts the Fill method the Client count is a few hundred, but it clears it out somewhere along the way.  Any idea what I am doing wrong here, or if there is a better way of doing what I'm trying to accomplish?  I can't really use the parent/child relationship here because it doesn't make sense in other areas of the database/code.

Ok, one thing I think I did leave out was that the primary BO is used in a BusinessBindingSource to display in a DevExpress TreeList.  I mention that now because the Clients.Count seems to change somewhere in the following code.  Is there anything in here that could be causing something to fire off somewhere else I'm not aware of??

Private Sub BusinessObject_CurrentDataTableRefilled()

  '-- Remove the handler on the old current view
  RemoveHandler _BusinessObject_CurrentView.ListChanged, AddressOf      BusinessObject_CurrentView_ListChanged

  '-- Save a reference to the new view
  Me._BusinessObject_CurrentView = Me._BusinessObject.CurrentView

  '-- Add the handler to the new view
  AddHandler Me._BusinessObject_CurrentView.ListChanged, AddressOf   BusinessObject_CurrentView_ListChanged

  '-- Raise the list changed event
  Me.OnListChanged(New ListChangedEventArgs(ListChangedType.Reset, -1))
End Sub