Hi Alegandro,

XXX text, I'm not gonna touch that. ;)

>If I bind textbox txtXXX to a data field and then say in some method txtXXX.Value = yyy, have I set (replaced) the data field with the new value?

Yep. That's how it's supposed to work. When you set Control.ControlSource to a field in a table, the control's value will be put in the table.

>I am using optimistic table buffering. Does that matter at all?

Nope. However, the changes won't be written to the table until you issue a TableUpdate()

hth