>BusinessBindingSource seems to be some sort of undocumented internal class. How would that help?

I don't know about it being an "undocumented internal class". It is very much a necessary and important class in the SF armoury. You should see the BusinessBindingSource in the SF toolbox. If you have a DataGridView and you would like to use a businessobject as its datasource, all you do is drop a BusinessBindingSource on the form, and like I said before, point the BusinessBindingSource at the businessobject and the DataGridView at the BusinessBindingSource. This is the *only* way in StrataFrame to correctly bind objects like DataGridViews to business objects.

>I was going to start another thread in which I would mention that SF does not have a control derived from the base DataGridView to enable the same quality of binding to BOs that other controls such as Textbox enjoy. Are you suggesting that I need to implement their data binding in my own subclass of the base DataGridView?

Nope. I am suggesting that you use a BusinessBindingSource. There is only a single relevant property that it provides - "BusinessObject". Select the business object from list of business objects it shows you and then point the DataGridView, via its DataSource property at the BusinessBindingSource. It is very, very easy to use this component. In fact, I was somewhat instrumental in the development of this component and the development I was working on provided a thorough testbed for it.