Speicherleck oder nicht bzw. wer findet den Fehler?

[phlux]

Okay hier ist der Code von der DialogForm

Delphi-Quellcode:

unit frmItemDlg;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, JvExStdCtrls, JvEdit, Buttons, Mask,
  JvExMask, JvBaseEdits, JvValidateEdit, JvDatePickerEdit,
  JvCheckedMaskEdit, JvMaskEdit, JvToolEdit, WasteItem;

type
  TItemDlg = class(TForm)
    Panel1: TPanel;
    Bevel1: TBevel;
    Label1: TLabel;
    Label2: TLabel;
    Image1: TImage;
    GroupBox1: TGroupBox;
    Label5: TLabel;
    edTrans: TJvValidateEdit;
    edDisp: TJvValidateEdit;
    edOverall: TJvValidateEdit;
    Label6: TLabel;
    Label8: TLabel;
    Bevel2: TBevel;
    btnCancel: TButton;
    btnOK: TButton;
    GroupBox2: TGroupBox;
    Label3: TLabel;
    ItemList: TComboBox;
    DatePicker: TJvDatePickerEdit;
    Label7: TLabel;
    edWeight: TJvValidateEdit;
    Label4: TLabel;
    procedure btnCancelClick(Sender: TObject);
    procedure edOverallEnter(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure ItemListKeyUp(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure btnOKClick(Sender: TObject);
  private
    { Private-Deklarationen }
    fPath: String;
    fItems: TStringList;
//  protected
    fWasteItem: TWasteItem;
  public
    { Public-Deklarationen }
    property Waste: TWasteItem read fWasteItem write fWasteItem;
  end;

var
  ItemDlg: TItemDlg;

implementation

{$R *.dfm}

procedure TItemDlg.btnCancelClick(Sender: TObject);
begin
  ModalResult := mrCancel;
end;

procedure TItemDlg.FormCreate(Sender: TObject);
begin
  fPath := IncludeTrailingPathDelimiter(ExtractFilePath(Application.ExeName));
  fItems := TStringList.Create;
  fWasteItem := TWasteItem.Create(Self);
  If FileExists(fPath + 'waste.itm') then
  begin
    ItemList.Items.LoadFromFile(fPath + 'waste.itm');
  end;
end;

procedure TItemDlg.FormDestroy(Sender: TObject);
begin
  ItemList.Items.SaveToFile(fPath + 'waste.itm');
  fWasteItem.Free;
  fItems.Free;
end;

procedure TItemDlg.btnOKClick(Sender: TObject);
begin
  fWasteItem.WasteType := ItemList.SelText;
  fWasteItem.Weight := edWeight.Value;
  fWasteItem.TransportCost := edTrans.Value;
  fWasteItem.DisposalCost := edDisp.Value;
  fWasteItem.Date := DatePicker.Date;
  ModalResult := mrOK;
end;

end.

Ich habe mir mal erlaubt die unrelevanten Teile (StringListe in eine Combobox laden&speichen) zu entfernen.