//listbox dragDrop DragOver
procedure TForm1.Edit1DragOver(Sender, Source: TObject; X, Y: Integer;
State: TDragState; var Accept: Boolean);
begin
Accept := True;
end;
procedure TForm1.Edit1DragDrop(Sender, Source: TObject; X, Y: Integer);
begin
(Sender as TEdit).Text := (Source as TListBox).Items[(Source as TListBox).ItemIndex];
end;