Problem detecting changes on a parent-child bindingsource

Hi!. I have a problem with bindingsource endEdit method. I have a bindingsource binded to a table from a dataset. I have another bindingsource binded to a relation from the first bindingsource (parent-child relation). I have a form with several textboxes binded to the first bindingsource (parent) and some textboxes binded to the second bindingsource (child). My problem is that when i call EndEdit method on the first bindingsource, the underlying dataset detect changes but if I call EndEdit method on the second...the dataset.HasChanges method returns false unless i move to another record through a binding navigator. I want to detect changes on the child fields without canging record position.

 

Code :

'parent bindingource

Me.BindingSource1.DataSource = dsDetalleArticulo

Me.BindingSource1.DataMember = "TARTICULOS"

'child bindingsource
bsArticulosClientes.DataSource = Me.BindingSource1
bsArticulosClientes.DataMember = "ArticulosClientes"

 
Code to check for changes:

bsArticulosClientes.EndEdit()' at this point RowState=unchanged.
Me.BindingSource1.EndEdit()

'the following line only returns true when the changes affect textboxes binded to the parent bindingsource

If dsDetalleArticulo.HasChanges Then

......

end if

Any ideas?

 

Thank you
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