Problem with ediing data in grid

[HarryKalma]

I have 2 grids on form.
1 - Main data.
2 - Slave data. Data changes all time when I change maindata row.

If I edit data in slave grid and after editing make click in same (slave) grid -- all is fine.
Only if after editing I make click on maindata grid, I get:
at first: FastMM error: error during GetMem operation. Block has been modified being freed
at second: system error: Out of memory.

[HarryKalma]

Problem resolved (partly) by adding the following code:

Code: Select all

procedure TMainForm.tgrdAttributesCellEdited(const Sender: TObject;
  const AEditor: TControl; const AColumn: TColumn; const ARow: Integer;
  var ChangeData: Boolean; var NewData: string);
begin
  if MainForm.Focused.GetObject <> tgrdAttributes then
    ChangeData:= False;
end;

onCellEdited not fired before onExit event.

It's still a problem. In this example, the data entered by the user is destroyed. How to store them?

[HarryKalma]

NB. I use FMX.

[Yeray]

Hello,

Could you please arrange a simple example so we can reproduce the problem here?
Thanks in advance.

[HarryKalma]

Exact error duplication:
A) Select the first line of mastergrid (Left grid).
b) Edit slave cell (right grid).
c) Left the changed cell with the mouse and click on the mastergrid last line.

A slightly different error occurs when after edit click mastergrid second or third line.

Demo location: https://www.online.ee/sharefile.php?sha ... 8249e07f9f

[Yeray]

Hello,

You are copying your original data to MainSlaveData everytime you select a new row in the main grid. This is overriding the changes in MainSlaveData.
Instead, you could use an array to access your slave data. Ie:

Demo to Steema.zip

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