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unit Eintrag;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    ListBox1: TListBox;
    name: TEdit;
    alter: TEdit;
    speichern: TButton;
    Edit1: TEdit;
    Edit2: TEdit;
    procedure Button3Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure ListBox1Click(Sender: TObject);
    procedure speichernClick(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;
  searchResult:TSearchRec;
  name,alter,bearbeiten,filename:shortstring;
  data:textfile;
  listboxindex:integer;


implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
if FindFirst('*.txt', faAnyFile, searchResult) = 0 then
repeat
listbox1.items.add(searchResult.Name);
until FindNext(searchResult) <> 0;

end;

procedure TForm1.Button1Click(Sender: TObject);
begin
alter.Visible := true;
name.Visible := true;
speichern.Visible := true;
end;

procedure TForm1.speichernClick(Sender: TObject);
begin
filename:=name.Text+'.txt';
AssignFile(data,filename);
rewrite(data);
writeln(data,name.text,',',alter.text);
Closefile(data);

listbox1.Clear;
if FindFirst('*.txt', faAnyFile, searchResult) = 0 then
repeat
listbox1.items.add(searchResult.Name);
until FindNext(searchResult) <> 0;
end;

procedure TForm1.ListBox1Click(Sender: TObject);
begin
listboxindex:=listbox1.ItemIndex;
edit1.Text:=floattostr(listboxindex);
Edit2.Text:=ListBox1.Items.Strings[ListBox1.ItemIndex];

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
alter.Visible := true;
name.Visible := true;
speichern.Visible := true;

?????????????????????????????????????????????
was muss hier hin um die Datei auszulesen ?
end;

procedure TForm1.Button3Click(Sender: TObject);
var
pfad:shortstring;
begin
pfad:=extractfilepath(application.exename);
deletefile(edit2.text);

listbox1.Clear;
if FindFirst('*.txt', faAnyFile, searchResult) = 0 then
repeat
listbox1.items.add(searchResult.Name);
until FindNext(searchResult) <> 0;
end;

end.                    

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procedure TForm1.FormCreate(Sender: TObject);
begin
  if FindFirst('*.txt', faAnyFile, searchResult) = 0 then
    repeat
      listbox1.items.add(searchResult.Name);
    until FindNext(searchResult) <> 0;
  FindClose(searchResult);
end;                    

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filename := name.Text +'.txt';
AssignFile(data,filename);
ReWrite(data);
WriteLn(data,name.text);
WriteLn(data,alter.text);
CloseFile(data);                    

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filename := name.Text +'.txt';
AssignFile(data,filename);
ReSet(data);
ReadLn(data,name.text);
ReadLn(data,alter.text);
CloseFile(data);                    

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type datensatz = record
       name: shortstring;
       adresse: shortstring;
     end;

var datei: file of datensatz;                    

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read(datei, datensatz);
edit1.text := datensatz.name;
edit2.text := datensatz.adresse;                    

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datensatz.name := edit1.text;
datensatz.name := edit2.text;
write(datei,datensatz);