RS update method don't work with bound controls

[BestS]

I have form with datacomboes and TextBoxes and I have
Set .DataField property to the names of the Fields in my database and also the datasource property to my Recordset.datasource
When I change a single record then press save button that does
Recordset.update and then Unload my form, the changes are not updated to the database
If I use recordset.movenext everything if fine, WHY .update does nothing in this case?
Thank you!

[brucevde]

Which LockType are you using? If it is adLockBatchOptimistic you must call Recordset.UpdateBatch.

[BestS]

, adOpenStatic, adLockOptimistic

it's not the problem it's something else
I am missing