Problem mit zugriff auf dbf Dateien und bearbeiten.

[Duffy Duck]

Natürlich, Du hast recht mache gleich ein Copy/Paste...

Sooo is drin, ein wenig lang...
Hoffe Du findest etwas

Delphi-Quellcode:

unit Main;

interface

uses
  SysUtils, Windows, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, StdCtrls, Buttons, ExtCtrls, Menus, ComCtrls, DB, Grids,
  DBGrids, dbf, DBTables, XPMan, jpeg, ToolWin, RpRender, RpRenderPDF,
  RpDefine, RpRave, RpCon, RpConDS, ImgList, FMTBcd, SqlExpr;

type
  TMainForm = class(TForm)
    MainMenu: TMainMenu;
    FileExitItem: TMenuItem;
    EditUndoItem: TMenuItem;
    EditCutItem: TMenuItem;
    EditCopyItem: TMenuItem;
    EditPasteItem: TMenuItem;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Edit3: TEdit;
    Button1: TButton;
    Dbf1: TDbf;
    XPManifest1: TXPManifest;
    Edit4: TEdit;
    Button4: TButton;
    GroupBox1: TGroupBox;
    Label3: TLabel;
    Label4: TLabel;
    vonGast: TEdit;
    bisGast: TEdit;
    Button2: TButton;
    GroupBox2: TGroupBox;
    Label5: TLabel;
    Label6: TLabel;
    Timer1: TTimer;
    StatusBar1: TStatusBar;
    OpenDialog1: TOpenDialog;
    Oeffnen1: TMenuItem;
    RvRenderPDF1: TRvRenderPDF;
    RvDataSetConnection1: TRvDataSetConnection;
    RvCustomConnection1: TRvCustomConnection;
    RvProject1: TRvProject;
    Drucken1: TMenuItem;
    PrintDialog1: TPrintDialog;
    Dbf1KUNR: TIntegerField;
    Dbf1KUNAM: TStringField;
    Dbf1KUANRED: TStringField;
    Dbf1KUFIRMA: TStringField;
    Dbf1KUSALDO: TFloatField;
    Dbf1KULIMIT: TLargeintField;
    ImageList1: TImageList;
    Query1: TQuery;
    procedure FormCreate(Sender: TObject);
    procedure FileExit(Sender: TObject);
    procedure EditUndo(Sender: TObject);
    procedure EditCut(Sender: TObject);
    procedure EditCopy(Sender: TObject);
    procedure EditPaste(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Oeffnen1Click(Sender: TObject);
    procedure Drucken1Click(Sender: TObject);
    procedure Edit3KeyPress(Sender: TObject; var Key: Char);
    procedure vonGastChange(Sender: TObject);
    procedure Edit3Change(Sender: TObject);
    procedure Button2Click(Sender: TObject);

end;

var
  MainForm: TMainForm;

implementation

{$r *.dfm}

procedure TMainForm.FormCreate(Sender: TObject);
begin
  Statusbar1.Panels[1].Text:=TimeToStr (now);
  Statusbar1.Panels[2].Text:=DateToStr (now);
end;

procedure TMainForm.FileExit(Sender: TObject);
begin
  dbf1.active := false;
  dbf1.Close;
  application.Terminate;
end;

procedure TMainForm.EditUndo(Sender: TObject);
begin
  { Code zur Durchführung von Bearbeiten Rückgängig hinzufügen }
end;

procedure TMainForm.EditCut(Sender: TObject);
begin
  { Code zur Durchführung von Bearbeiten Ausschneiden hinzufügen }
end;

procedure TMainForm.EditCopy(Sender: TObject);
begin
  { Code zur Durchführung von Bearbeiten Kopieren hinzufügen }
end;

procedure TMainForm.EditPaste(Sender: TObject);
begin
  { Code zur Durchführung von Bearbeiten Einfügen hinzufügen }
end;

procedure TMainForm.Button1Click(Sender: TObject);
begin
      dbf1.First;
  while not dbf1.EoF do begin
    dbf1.Edit;
    dbf1.FieldByName('KULimit').AsString := edit3.Text;
    dbf1.Post;
    dbf1.Next;
  end;
end;
procedure TMainForm.Button4Click(Sender: TObject);
begin
    dbf1.First;
  while not dbf1.EoF do begin
    dbf1.Edit;
    dbf1.FieldByName('KULimit').AsString := edit4.Text;
    dbf1.Post;
    dbf1.Next;
  end;
end;

procedure TMainForm.Timer1Timer(Sender: TObject);
begin
  Statusbar1.Panels[1].Text:=DateToStr (now);
  Statusbar1.Panels[2].Text:=TimeToStr (now);
end;

procedure TMainForm.Oeffnen1Click(Sender: TObject);
begin
   dbf1.active := false;
   DataSource1.DataSet := dbf1;
   OpenDialog1.execute;
   dbf1.active := true;
end;

procedure TMainForm.Drucken1Click(Sender: TObject);
begin
   RvProject1.Open;
   RvProject1.Execute;
end;

procedure TMainForm.Edit3KeyPress(Sender: TObject; var Key: Char);
begin
     if NOT (Key in [#08, '0'..'9']) then
    Key := #0;
end;

procedure TMainForm.vonGastChange(Sender: TObject); //Filter Button wird eingeschaltet
begin
      button2.Enabled:=true;
end;

procedure TMainForm.Edit3Change(Sender: TObject); //OK Button wird eingeschaltet
begin
      button1.Enabled:=true;
  end;

procedure TMainForm.Button2Click(Sender: TObject);
begin
    query1.Close;
    query1.sql.text := 'select * from Kunden limit ' + vonGast.Text + ', ' + bisGast.Text;
    query1.Open;
  end;

end.