TAdvGridDropDown

VCL TMS VCL UI Pack
5

This shows the dropdown grid without fixed row:

procedure TForm1.AdvGridDropDown1DropDown(Sender: TObject;
  var acceptdrop: Boolean);
begin
  AdvGridDropDown1.Grid.RowCount := 10;
  AdvGridDropDown1.Grid.FixedRowAlways := false;
  AdvGridDropDown1.Grid.FixedRows := 0;
  AdvGridDropDown1.Grid.LinearFill(false);
end;