TMSFNCDataGrid: Bug in CellCheckBoxChange event

Create a checkbox column:

GridResult.AddCheckBoxColumn(0,false);

Use CheckBoxChangeEvent with ShowMessage:

procedure TForm.GridCellCheckBoxChange(Sender: TObject; AColumn, ARow: Integer);
begin
  ShowMessage('Help');
end;

After cklick on checkbox the entire grid disappears…

Thanks for reporting, the issue is now fixed, and will be available in the next release.