Listview speichern und laden

[LordGinn]

Hier der Zwischenstand.


Das Speichern funktioniert.

Delphi-Quellcode:

procedure TForm1.Button13Click(Sender: TObject);
Var
  SaveList: TStrings;
  i, j: Integer;
  TempStr: String;
Const
  ItemTrenner = #134;
  ListTrenner1 = #179;
  ListTrenner2 = #178;

Begin
  If Not SaveDialog1.Execute Then Exit;
  SaveList := TStringList.create;
  Try
    With ListView1 Do
    Begin
      For i := 0 To pred(Items.Count) Do
      Begin
        TempStr := '';
        With Items[i] Do
          For j := 0 To pred(SubItems.Count) Do
            TempStr := TempStr + ItemTrenner + SubItems[j];

        SaveList.Add(Items[i].Caption + TempStr);


      End;

end;
    SaveList.add(Listtrenner1);

    With ListView2 Do
      For i := 0 To pred(Items.Count) Do
      Begin
        TempStr := '';
        With Items[i] Do
          For j := 0 To pred(SubItems.Count) Do
            TempStr := TempStr + ItemTrenner + SubItems[j];

        SaveList.Add(Items[i].Caption + TempStr);


      End;

end;

    SaveList.add(Listtrenner2);

    SaveList.SaveToFile(SaveDialog1.FileName+'.txt');

  Finally
    FreeAndNil(SaveList);
  End;
End;

Das Laden funktioniert nicht. Es kommt keine Fehlermeldung. Die Listviewen bleiben leer. Wird bestimmt ein Fehler beim Copy sein.

Delphi-Quellcode:

procedure TForm1.Button12Click(Sender: TObject);
Var
  LoadList, ErsteLW, ZweiteLW: TStrings;
  i, ActPos, PrevPos: Integer;
Const
  ItemTrenner = #134;
  ListTrenner1 = #179;
  ListTrenner2 = #178;

Begin
  If Not OpenDialog1.Execute Then Exit;
  LoadList := TStringList.create;
  ErsteLW:=TStringList.create;
  ZweiteLW:=TStringList.create;

  Try
    LoadList.LoadFromFile(OpenDialog1.FileName);
    ListView1.Items.Clear;
    Listview2.items.clear;



    For i := 0 To pred(LoadList.Count) Do
    Begin
    ErsteLW.add(Copy(LoadList[i], 1, Pos (ListTrenner1, Loadlist[i]) - 1));
    ZweiteLW.add(Copy(LoadList[i], Pos (ListTrenner1, Loadlist[i]) + 1, Pos (ListTrenner2, Loadlist[i]) -1));
    end;

    For i := 0 To pred(ErsteLW.Count) Do
    Begin
      PrevPos := 1;
      ActPos := 1;
      ActPos := PosEx(ItemTrenner, ErsteLW[i], succ(ActPos));
      With ListView1.Items.Add Do
      Begin
        Caption := Copy(ErsteLW[i], PrevPos, (ActPos - PrevPos));
        PrevPos := succ(ActPos);
        Repeat
          ActPos := PosEx(ItemTrenner, ErsteLW[i], succ(ActPos));
          If ActPos <> 0 Then
            SubItems.Add(Copy(ErsteLW[i], PrevPos, (ActPos - PrevPos)))
          Else
            SubItems.Add(Copy(ErsteLW[i], PrevPos, Length(ErsteLW[i])));
          PrevPos := succ(ActPos);
        Until ActPos = 0;
      End;
    End;

    For i := 0 To pred(ZweiteLW.Count) Do
    Begin
      PrevPos := 1;
      ActPos := 1;
      ActPos := PosEx(ItemTrenner, ZweiteLW[i], succ(ActPos));
      With ListView2.Items.Add Do
      Begin
        Caption := Copy(ZweiteLW[i], PrevPos, (ActPos - PrevPos));
        PrevPos := succ(ActPos);
        Repeat
          ActPos := PosEx(ItemTrenner, ZweiteLW[i], succ(ActPos));
          If ActPos <> 0 Then
            SubItems.Add(Copy(ZweiteLW[i], PrevPos, (ActPos - PrevPos)))
          Else
            SubItems.Add(Copy(ZweiteLW[i], PrevPos, Length(ZweiteLW[i])));
          PrevPos := succ(ActPos);
        Until ActPos = 0;
      End;
    End;

  Finally
    FreeAndNil(LoadList);
    FreeAndNil(ErsteLW);
    FreeAndNil(ZweiteLW);
  End;
End;