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Fetching/Updating data using Web Service

I am developing smart client application which uses web service to retrieve
data from HO. The Web Service will get the data from HO database, mark it
with status "With PDA" and send the data to the PDA via GPRS connectivity.
The PDA will insert the data in the SQL CE database. The next Sync from PDA
to HO will not bring the records which are marked with status "With PDA" in
HO database. I am not sure this can be achieved in a transaction,
------------------
start transaction
call web service to fetch data
update data in SQL CE
commit transaction
if error- rollback transaction
--------------------
if the PDA is switched off the whole transaction must be rollbacked
(including the changes done by the Web Service).
How could I handle the above scenario?
Sep 13 '06 #1
0 1296

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