Question

With a TListView using OwnerData (virtual), when I press a key with the LV as activecontrol, it makes a BEEP sound. How can I avoid that?

Answer 1

As Remy Lebeau said, the problem is OnDataFind was not implemented, but you should implement it like that:

procedure TForm1.ListViewDataFind(Sender: TObject; Find: TItemFind; const FindString: string;
  const FindPosition: TPoint; FindData: Pointer; StartIndex: Integer; Direction: TSearchDirection;
  Wrap: Boolean; var Index: Integer);
begin
  // Here we must find currently selected element
  if Assigned((Sender as TListView).Selected) then
    Index := (Sender as TListView).Selected.Index;
end;