I have a Parent BO oClient that I've registered a Child BO oClintIDNumbers with using the following code in the new sub of my form.

Me.oClient = CType(Me.RegisterPrimaryBizObj(New Client), Client)
Me.oClientList = CType(Me.RegisterBizObj(New ClientList), ClientList)
Me.oClintIDNumbers = CType(Me.RegisterBizObj(New ClientIDNumbers), ClientIDNumbers)
Me.oClient.RegisterChildBizObj(Me.oClintIDNumbers, "tblClientIDnumsCi")

When I call a Function on the parent oClient to populate the dataset it isn't fireing the HookParentRetrieved sub on the Child. Is there something else that I need to do to setup the parent-child relationship in the BizObjects?