unit5.~pas

软件课程设计

unit Unit5;

interface

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

type
  TForm5 = class(TForm)
    ComboBox1: TComboBox;
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    StatusBar1: TStatusBar;
    DBGrid1: TDBGrid;
    Button3: TButton;
    Button4: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form5: TForm5;

implementation

uses Unit1;

{$R *.dfm}

procedure TForm5.Button2Click(Sender: TObject);
begin
close;
combobox1.Text:='';
edit1.Text:='';
button3.Visible:=false;
button4.Visible:=false;
end;

procedure TForm5.Button3Click(Sender: TObject);
begin
DBGrid1.ReadOnly:=false;
end;

procedure TForm5.Button4Click(Sender: TObject);
begin
DBGrid1.ReadOnly:=true;
end;

procedure TForm5.Button1Click(Sender: TObject);
begin
form1.AdoQuery1.Close;
form1.AdoQuery1.SQL.Clear;
form1.AdoQuery1.SQL.Add('select * from 会员信息 where "'+combobox1.Text+'"='''+Edit1.Text+''' ');
form1.AdoQuery1.Open;
DBGrid1.Visible:=true;
button3.Visible:=true;
button4.Visible:=true;
end;

end.