(SOLVED) Filter not Working

[InfoMan]

Use a component TDbf to access the database that stores NINDNET.dbf all reported cases. In this database there is a field called ID_AGRAVO that contains a code for the type of case.

Filtar all cases need to be ID_AGRAVO = B019 to display in a report, but is not working. The report is showing all cases that are in the database and not just those that are B019.

Please help me. Thank you all.

[Laksen]

Have you tried something like this: ID_AGRAVO = "B019". I suppose it's a string and not a literal of sorts.

[InfoMan]

Have you tried something like this: ID_AGRAVO = "B019". I suppose it's a string and not a literal of sorts.

Yes. I tried. But not working also.
Yes. ID_AGRAVO is a string.

[InfoMan]

I managed to filter through the blank records OnFilterRecord event handler. For this, I did so:

Accept := Copy(Trim(dadosNot.FieldByName('ID_AGRAVO').AsString),1,4) = 'B019';

Putting up with the accept parameter value of false records are ignored.

There is a hint for those who need to do it like me, and thank you to everyone who tried to help me.