OnEditingDone Events in TStringGrid
lazarus / 10-Designer

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Blaazen · 2009-05-06 16:06

Hello,
I have TStringGrid on my form, property AutoEdit is set to True,
option goEditing is also True and option goAlwaysShowEditor may be
True or False, no matter. When a cell of my grid is in editing mode
and i leave it (I click on the next cell, for example) the
OnEditingDone event is launched three times! Is it bug or some delphi
legacy? I think it is not very efficient launch some event three
times. OK, I can do a little workaround:

procedure TGrid.OnEditingDone(Sender: TObject);
begin
if grid.modified then
  begin
     grid.modified:=false;
     .....my code...
  end;
end;
(this makes my code run only once)


but does anyone know better way how to avoid it?
Thanks for your ideas.

I forgot to write that it's Lazarus 0.9.26 on Win Vista.

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zeljko · 2011-02-04 19:20

Try wotj patch from here: http://bugs.freepascal.org/view.php?id=18686

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Blaazen · 2011-02-04 20:21

Zeljko, you have great memory!   It is post from June 2009  .

AFAIR I didn't use this method in my grids finally.

Will this patch be in some near SVN ?

If yes then I will test it and maybe I will do some revision on my
code.

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Edson · 2017-02-23 04:53

Just for information: Six year later and I still experiment problems
with several calls on OnEditingDone and OnGetEditText.

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Cyrax · 2017-02-23 07:31

Please post a follow up in that linked bug report and ask applying the
patch to the trunk if it solves the problem.

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Edson · 2017-02-23 15:47

The bug reported in http://bugs.freepascal.org/view.php?id=18686, is
another problem with TStringGrid. Maybe related (maybe not) to the
reported here.

I can confirm the bug reported there, is still happening in my system.

It seems TStringGrid is flawed, at least with the editing options. I
had to implement my own OnEditingDone and OnGetEditText, to make it
works.