shan2.pas

本人集结心血制作的delphi版学生信息管理系统

unit shan2;

interface

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

type
  TForm4 = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    TabSheet2: TTabSheet;
    ADOConnection1: TADOConnection;
    ADOTable1: TADOTable;
    DataSource1: TDataSource;
    ADOTable2: TADOTable;
    DataSource2: TDataSource;
    DataSource3: TDataSource;
    ADOTable3: TADOTable;
    Button1: TButton;
    Button2: TButton;
    Label1: TLabel;
    Label2: TLabel;
    DBText1: TDBText;
    DBLookupComboBox1: TDBLookupComboBox;
    Label6: TLabel;
    Label7: TLabel;
    Label8: TLabel;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBEdit6: TDBEdit;
    Button3: TButton;
    Button4: TButton;
    procedure DBLookupComboBox1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form4: TForm4;

implementation

{$R *.dfm}

procedure TForm4.DBLookupComboBox1Click(Sender: TObject);
begin
adotable2.Open;

end;

procedure TForm4.Button3Click(Sender: TObject);
begin
if not adotable3.Bof then
adotable3.Prior
else
adotable3.First;
end;

procedure TForm4.Button4Click(Sender: TObject);
begin
if not adotable3.Eof then
adotable3.Next
else
adotable3.Last;
end;

procedure TForm4.Button1Click(Sender: TObject);
begin
if not adotable3.Eof then
begin
if application.MessageBox('确定要删除这笔数据？','注意！',MB_YESNO+MB_ICONQuestion)=IDYES then
adotable3.Delete;
end;
end;


procedure TForm4.Button2Click(Sender: TObject);
begin
adotable2.Edit;
adotable2['成绩1']:=0;
adotable2['成绩2']:=0;
adotable2['成绩3']:=0;
adotable2.Post;
dbedit1.Text:='';
dbedit2.Text:='';
dbedit3.Text:='';
end;

end.