We are inserting a new record in the datasource, setting new identity. We capture data fields in the dataset with that identity as key. Push back to original record, but adds two records, rather than updating first record. We get a concurrency violation if we accept changes after the insert. We are brand new at VB.Net.

Hi!
it is very unclear what you are trying to do.

from my little experience in concurrency errors,
try this solution to get rid of the error:
add and remove the records from the dataset,
perform update from the data adapter,

and my point is - do AcceptChanges() method at the end only!
hope it helped in any way..