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Asked: 2026-06-11T00:22:27+00:00

I have a TDBGrid linked to a TDataSource with a TFibDataSet behind. On the

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I have a TDBGrid linked to a TDataSource with a TFibDataSet behind. On the OnCalcFields of the dataset I’m trying to add the string ‘Russisch (русский)’.

procedure TForm1.pFIBDataSet1CalcFields(DataSet: TDataSet);
begin
  DataSource1.DataSet.FieldByName('Language').AsString := ('Russisch (русский)');

The problem is that in the grid the result is displayed as :Russisch(????????) 

 DataSource1.DataSet.FieldByName('Language').AsWideString :=('Russisch (русский)');

has the same result

FibDataBase component has ConnectParams.Charset set to UTF-8. Also I set in the DBParams value lc_ctype=UTF8.

What I’m doing wrong here?

LE: Delphi XE, Firebird and UTF8 – this does not solve my problem.

LE1: Problem occurs only with calculated fields. Live data ‘Russisch (русский)’ is displayed correctly.

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1 Answer

  1. Editorial Team

    I guess you made the same mistake I always make. When you create a field like this:

    enter image description here

    it’s ANSI. You have to select WideString for it to be unicode:

    enter image description here

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