Performance FNCDataGrid

FNC TMS FNC UI Pack
1

Hello,
I have the following problem: loading approximately 5,000 rows into the FNCDataGrid is extremely slow the second time around. The first load takes about 8 seconds, while the second load—using the exact same data—takes over a minute. The loading process is already wrapped in BeginUpdate and EndUpdate. I have tried completely clearing the grid, removing all filters, and setting the row count to 0, but unfortunately, none of this has helped. I am using the latest version. What else can I do to speed up the loading process? The grid has about 40 columns, though not all of them are visible.

Thanks.

Steffen

2

Do you have more details how exactly you load the grid?

I did a quick test here with loading not 5000 but 500000 rows and this loads here in below 1.5sec:

procedure TForm1.Button1Click(Sender: TObject);
var
  i: integer;
  t: dword;
begin
  t := GetTickCount;
  TMSFNCDataGrid1.BeginUpdate;
  TMSFNCDataGrid1.RowCount := 500000;

  for i := 1 to TMSFNCDataGrid1.RowCount - 1 do
  begin
    TMSFNCDataGrid1.Cells[1,i] := 'item ' + i.ToString;
  end;
  TMSFNCDataGrid1.EndUpdate;

  t := GetTickCount - t;
  Caption := t.ToString;
end;

So, what are you doing different?

3

Hi,
I’ve found the problem. I don’t really understand why performance drops so drastically, but if I remove the following two lines from the code, it runs incredibly fast:
AdvStatusbar.Panels[1].Progress.Position:=AdvStatusbar.Panels[1].Progress.Position+1;
AdvStatusbar.Repaint;

Any ideas? What am I doing wrong here?
Thanks.

Steffen