field num_med cannot be modified [closed] - delphi

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I've put this code in a speedbutonclick but when I'was trying to execute it I got the message that said field num_med cannot be modified
the code is
procedure TAddEdiMedForm.SpeedButton1Click(Sender: TObject);
begin
DM.MedicamentTable.InsertRecord([ Edit1.Text, Edit2.Text, Edit3.text,
Edit4.Text, Edit5.Text, Edit6.Text,
Edit7.Text]);
CloseModal;
end;

Answer 1

The problem is trying to insert a value for an AutoInc field, which you are trying to do with your InsertRecord statement. You need to retrieve the AutoInc value (from the server) after the new row is inserted, not try and force a value from the client side!
Since you can't specify a value for the AutoInc field when you add a new row, you need to avoid using InsertRecord. Instead, call Insert on tthe dataset, populate the other (non-AutoInc) fields by individual assignment statements, then call Post. How best to retrieve the AutoInc value depends on the back-end server, though FireDAC usually does a pretty good job of doing this for you - look up how to get the value from the Online Help or google it.
You should have mentioned that the Num_med field is an AutoInc in your q, not blithely say that it is an Int field in a comment in reply to a query for info you should have supplied in the first place. In future, please exercise a bit of consideration for readers here by including all relevant info in your initial q.