unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids, DB, ADODB;

type
  TForm1 = class(TForm)
    ADOConnection1: TADOConnection;
    ADODataSet1: TADODataSet;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses Unit2;

{$R *.dfm}
procedure select;
begin
  Form1.ADODataSet1.Active:=false;
  Form1.ADODataSet1.CommandText:='select * from pokupatel order by code_pok';
  Form1.ADODataSet1.Active:=true;
  Form1.DBGrid1.Columns[0].Width:=30;
  Form1.DBGrid1.Columns[1].Width:=80;
  Form1.DBGrid1.Columns[2].Width:=80;
  Form1.DBGrid1.Columns[3].Width:=80;
  Form1.DBGrid1.Columns[0].Color:=clSilver;
  Form1.DBGrid1.Columns[1].Color:=clAqua;
  Form1.DBGrid1.Columns[2].Color:=clSkyBlue;
  Form1.DBGrid1.Columns[0].Title.Caption:='#';
  Form1.DBGrid1.Columns[1].Title.Caption:='Фамилия';
  Form1.DBGrid1.Columns[2].Title.Caption:='Имя';
  Form1.DBGrid1.Columns[3].Title.Caption:='Отчество';
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
   select;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Form2.ShowModal;
end;

procedure TForm1.FormShow(Sender: TObject);
begin
  ADODataSet1.Connection:=ADOConnection1;
  DataSource1.DataSet:=ADODataSet1;
  DBGrid1.DataSource:=DataSource1;
  ADOConnection1.LoginPrompt:=false;
  DBGrid1.Width:=310;
  Form1.Width:=330;
  select;
end;

end.
 

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    ADODataSet1: TADODataSet;
    ADOQuery1: TADOQuery;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Button1: TButton;
    procedure FormActivate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses Unit1;

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
   if MessageDlg('Удалить?',mtConfirmation,[mbYes,mbNo],0)=mrYes then
      begin
        ADOQuery1.SQL.Text:='delete from pokupatel where '+
         'code_pok='+Label5.Caption;
        ADOQuery1.ExecSQL;
        Form2.Close;
      end;
end;

procedure TForm2.FormActivate(Sender: TObject);
begin

  ADODataSet1.Connection:=Form1.ADOConnection1;
  ADOQuery1.Connection:=Form1.ADOConnection1;
  Edit1.Text:=Form1.ADODataSet1.FieldValues['surname'];
  Edit2.Text:=Form1.ADODataSet1.FieldValues['name'];
  Edit3.Text:=Form1.ADODataSet1.FieldValues['patronymic'];

  ADODataSet1.Active:=false;
  ADODataSet1.CommandText:='select code_pok from pokupatel '+
  'where surname='+''''+Edit1.Text+''''+
  'and name='+''''+Edit2.Text+''''+
  'and patronymic='+''''+Edit3.Text+'''';
  ADODataSet1.Active:=true;
  Label5.Caption:=ADODataSet1.FieldValues['code_pok'];
end;

procedure TForm2.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  Form1.Button1Click(Sender);
end;

end.