leonard.miranda

If this were the standard and correct behavior of events, I think this should be the case regardless of how many records there are in the DataSet. This worked correctly until the last version.

The problem is that this behavior blocks the insertion of data, especially when I try to do it through the DBGrid (Down Arrow)

The field can be only S or N. 1 - On NewRecord I change to S. 2 - The value receives 'empty', raising a exception... maybe it's be a better demo..

Sorry again.

Did you compile it on a previous version? The behavior dont occur.

Do you agree that we have a incorrect behavior here?

Yes, but look it

If you use bottom arrow on DBGrid to add record, the error occur too

The correct version. sorry. OnValidateBug.zip

Ops.. Change the Insert by Append

Here this error occur.. How can I record my screen like you?

https://quality.embarcadero.com/browse/RSP-40802

Hi, I'm sending the source code. If you compile it in delphi 11.2, the error does'nt occur. OnValidateBug.zip