>Binding a textbox control instead of a grid in the Master/Detail sample for a windows form, i cannot save the values in the detail table? Any idea what's im missing, i'm assuming that the way grid and text box control the work same way i.e. binding property, member, etc.

Try setting the AutoEndEdit property of your business object to true to see if that fixes the problem (you can do this in the constructor of the business object).

Regards,