unit8.pas

学生学籍管理 delphi+sql2000 合力制作

unit Unit8;

interface

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

type
  TForm8 = class(TForm)
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    Edit1: TEdit;
    Button1: TButton;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Button2: TButton;
    Button3: TButton;
    DBEdit3: TDBEdit;
    Button4: TButton;
    Label1: TLabel;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBEdit6: TDBEdit;
    DBEdit7: TDBEdit;
    DBEdit8: TDBEdit;
    DBEdit9: TDBEdit;
    DBEdit10: TDBEdit;
    DBEdit11: TDBEdit;
    DBEdit12: TDBEdit;
    DBEdit13: TDBEdit;
    DBEdit14: TDBEdit;
    DBEdit15: TDBEdit;
    DBEdit16: TDBEdit;
    DBEdit17: TDBEdit;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label10: TLabel;
    Label13: TLabel;
    Label16: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label8: TLabel;
    Label11: TLabel;
    Label14: TLabel;
    Label17: TLabel;
    Label4: TLabel;
    Label9: TLabel;
    Label12: TLabel;
    Label15: TLabel;
    Label18: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form8: TForm8;

implementation

{$R *.dfm}
 uses unit2;
procedure TForm8.Button1Click(Sender: TObject);
begin
  if Edit1.Text = '' then
  begin
    showmessage('没有你所要查询的资料，请核对后重试！') ;
    edit1.Clear;
    exit;
  end
  else
  begin
     ADOQuery1.SQL.Clear;
     ADOQuery1.SQL.Add('select * from studentinformation where 学号 =' + Edit1.Text);
     ADOQuery1.Open;
     DBEdit1.Enabled := False;
     DBEdit2.Enabled := False;
     DBEdit3.Enabled := False;
     DBEdit4.Enabled := False;
     DBEdit5.Enabled := False;
     DBEdit6.Enabled := False;
     DBEdit7.Enabled := False;
     DBEdit8.Enabled := False;
     DBEdit9.Enabled := False;
     DBEdit10.Enabled := False;
     DBEdit11.Enabled := False;
     DBEdit12.Enabled := False;
     DBEdit13.Enabled := False;
     DBEdit14.Enabled := False;
     DBEdit15.Enabled := False;
     DBEdit16.Enabled := False;
     DBEdit17.Enabled := False;
     Button3.Enabled := False;
  end;
end;

procedure TForm8.Button2Click(Sender: TObject);
begin
if edit1.Text = '' then
begin
  showmessage('操作错误!') ;
  edit1.Clear;
  exit;
end
else
begin
  ADOQuery1.Edit;
  DBEdit1.Enabled := True;
  DBEdit2.Enabled := True;
  DBEdit3.Enabled := True;
  DBEdit4.Enabled := True;
  DBEdit5.Enabled := True;
  DBEdit6.Enabled := True;
  DBEdit7.Enabled := True;
  DBEdit8.Enabled := True;
  DBEdit9.Enabled := True;
  DBEdit10.Enabled := True;
  DBEdit11.Enabled := True;
  DBEdit12.Enabled := True;
  DBEdit13.Enabled := True;
  DBEdit14.Enabled := True;
  DBEdit15.Enabled := True;
  DBEdit16.Enabled := True;
  DBEdit17.Enabled := True;
  Button3.Enabled := True;
end;
end;

procedure TForm8.Button3Click(Sender: TObject);
begin
  if Edit1.Text = '' then
  begin
    showmessage('操作错误!') ;
    edit1.Clear;
    exit;
  end
  else
    begin
      ADOQuery1.Post;
      showmessage('资料已修改!');
      Button3.Enabled := False;
    end;
end;

procedure TForm8.Button4Click(Sender: TObject);
begin
  self.Hide;
  Form2.Show;
  self.close;
end;

procedure TForm8.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
  if Key = #13 then
  begin
    Button1.SetFocus;
    Button1click(self);
  end;
end;

end.