[Solved] Unexpected behavior of DBRadioGroup !

[loaded]

Hi All,
I am using DBRadioGroup to control a 2-state field in my application.
When the program is first opened, there is no problem, but if I click on any datacontrol except DBRadioGroup, DBRadioGroup will reset itself.
Then, if I manually click DBRadioGroup a few times, the problem goes away.
I don't know if I am making a mistake or if this is a problem.
Do you think it could be the cause, and how can it be fixed?
I would really appreciate if you can help.

[wp]

You should post a small demo which shows the issue (pack .pas, .lfm, .lpi, .lpr and database file into a common zip which you can upload via "Attachments and other options"). Write the demo such that it works with a simple dataset, such as TBufdataset, TDBF or sqlite3 -- nobody is willing to install an exotic database engine just to verify an issue of a visual db-control.

[loaded]

wp, thank you very much for the answer.
While doing an application work to send to form;
I noticed that the

Code: Pascal  [Select][+][-]

1. procedure TForm1.DBGridOnGetText(Sender: TField; var aText: string; DisplayText: Boolean);
2. begin
3.   if  (DisplayText) then  aText := Sender.AsString;
4. end;
5. procedure TForm1.DBGrid1PrepareCanvas(sender: TObject; DataCol: Integer;Column: TColumn; AState: TGridDrawState);
6. var
7.   MyTextStyle: TTextStyle;
8. begin
9.     MyTextStyle := TDBGrid(Sender).Canvas.TextStyle;
10.     MyTextStyle.SingleLine := False;
11.     MyTextStyle.Wordbreak  := False;
12.     TDBGrid(Sender).Canvas.TextStyle := MyTextStyle;
13.     Column.Field.OnGetText := @Form1.DBGridOnGetText;
14. end;
15.  

codes I used to display (MEMO) fields as text on the dbgrid caused unexpected behavior on the DBRadioGroup.
Then I looked for an alternative solution to this.

Located in the https://stackoverflow.com/questions/4809298/lazarus-dbgrid-showing-memo-as-the-value-of-string-fields-in-sqlite-3 link;
I learned that the

Setting the dgDisplayMemoText property of dbgrid to true

recommendation is simpler and smoother.
When I applied it, my problem was solved.