Jess,

>All is fine now except that when I created new row (using NewRow()), it seems that the pointer is not positioned in the newly created row because it does not get the supposedly values when saving.
>
>How can I move the pointer to the desired business object newly created row? I don't have the any problem if the object is bound to datagrid because there is a NavigateData method in order to move to the row I want but I am not using a datagrid control.

You're not using a GridView, but it sounds like you are binding other user interface controls to the data? If so, check out the MM .NET Dev Guide topic "Synchronizing Data Bound User Interface Controls". The section "Synchronizing Controls with Different Data Sources". It shows you how to work with form's BindingContext manager to set the current row. You can also check out this .NET Help topic:

ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.NETDEVFX.v20.en/CPref17/html/T_System_Windows_Forms_BindingContext.htm

Best Regards,