Hello! I have a similar situation to the situation, described here: [image] How do I use master/detail when a new record is being inserted in master? TMS WEB Core I am using two TXDataWebDataSet, a master/detail relationship, when I am inserting a new record in the maste…

For documentation purposes - one possible solution (thank you Wagner!) is to add $id as a field in the dataset (see pic below). [image] then add code to the OnNewRecord event procedure TfrmOdvoz.wdsOdvozNewRecord(DataSet: TDataSet); begin Dataset.FieldByName('$id').Value := 1; end;

Inserting master+detail

WEB TMS WEB Core

wlandgraf (Wagner Landgraf) March 25, 2024, 1:41pm 7

It's present in existing records. If there are no records, then of course there is no $id.

You need to see the JSON response in the network tab.

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Inserting master+detail

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