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im facing problem in master(MT)/detail(DT) tables:
journal (MT) --> journaldt (on journal_id)-----------------> cstjour (on journaldt_id).

im using the ApplyUpdate method cause there is constraint on tables.
but when filling journaldt and then cstjour, and try to insert another row in journaldt, the previous rows in cstjour are missed.
this is how i used the applyupdates:

after post journal table:
Try
journaldt.ApplyUpdates;
Cstjour.ApplyUpdates;
Database.commit;
Except
journaldt.RestoreUpdates;
Cstjour.RestoreUpdates;
Database.Rollback;
end;
journaldt.CommitUpdates;
Cstjour.CommitUpdates;


can u help please?

Please send a complete small sample to dmitryg*devart*com to demonstrate this problem, including a script to create and fill table.

i sent u mail as ur request. waitin ur reply.

When establishing master-detail relationship the CachedUpdates property of detail dataset works properly only when TCustomDADataSet.Options.LocalMasterDetail is set to True. Therefore you should set the Chkjour.Options.LocalMasterDetail property to True.
You can find more detailed information about this in the MyDAC help.

10x dimon.