unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, DBGrids, DB, DBTables, ExtCtrls, StdCtrls, Mask, DBCtrls,
  Buttons;

type
  TForm1 = class(TForm)
    DataSource1: TDataSource;
    Table1: TTable;
    DBGrid1: TDBGrid;
    Panel1: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    BitBtn4: TBitBtn;
    BitBtn5: TBitBtn;
    BitBtn6: TBitBtn;
    procedure FormCreate(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure BitBtn4Click(Sender: TObject);
    procedure BitBtn5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses Unit3;

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
DBGRID1.ReadOnly:=true;
Table1.Open;
end;

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
Table1.Insert;
DBEdit1.SetFocus;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
table1.delete;
end;

procedure TForm1.BitBtn3Click(Sender: TObject);
begin
if(table1.state=dsedit) then
  begin
    table1.edit;
    dbedit1.SetFocus;
    dbedit1.SelectAll;
    end;
end;

procedure TForm1.BitBtn4Click(Sender: TObject);
begin
  if(table1.Modified) then
    table1.Post;
end;

procedure TForm1.BitBtn5Click(Sender: TObject);
begin
  if(table1.Modified) then
    table1.cancel;
end;

end.