procedure AddNewListViewItems;
 var
  oldViewStyle: TViewStyle;
 begin
  odlViewStyle := ListView1.ViewStyle;
  ListView1.ViewStyle := vsList;
  ListView1.Items.Clear;
  { Add new Listitems here }
  { An dieser werden die neuen ListItems eingefugt }
  ListView1.ViewStyle := oldViewStyle;
 end;