Hi Boki,
I have tried your Demo to download and it is incredibly fast to add 100,000 rows.
However, I have tried adding 1,000 it takes a long time. Not to mention 50,000 which takes hours. And the worst thing is that I need to add 200,000 columns
What is wrong in this simple test code?
procedure TForm1.Button1Click(Sender: TObject); Var X: Integer; begin for X:= 1 to 1000 do NextGrid61.AddRow(); end;