unit8.pas

来自「学校学籍管理系统」· PAS 代码 · 共 95 行

unit Unit8;

interface

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

type
  Tban = class(TForm)
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    BitBtn4: TBitBtn;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    procedure DBGrid1DblClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
    procedure DBGrid1KeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  ban: Tban;

implementation

uses Unit9, Unit4;

{$R *.dfm}

procedure Tban.DBGrid1DblClick(Sender: TObject);
begin
wu.Show
end;

procedure Tban.FormShow(Sender: TObject);
begin
dm.Database1.Connected:=True;

end;

procedure Tban.BitBtn3Click(Sender: TObject);
begin
if MessageDlg('确定删除该项吗?',mtConfirmation,[mbYes,mbno],0)= mrno then
 exit;
                begin
                 end;
if dm.he.RecordCount=0 then
  begin
    MessageBox(Handle,'数据为零，删除无效！','警告',MB_OK); exit;
 end;
 begin
dm.he.Delete;
end;
 end;
procedure Tban.BitBtn2Click(Sender: TObject);
begin
if MessageDlg('确定删除该项吗?',mtConfirmation,[mbYes,mbno],0)= mrno then
 exit;
                begin
                 end;
if dm.main.RecordCount=0 then
  begin
    MessageBox(Handle,'数据为零，删除无效！','警告',MB_OK); exit;
 end;
 begin
dm.main.edit;
end;
end;

procedure Tban.BitBtn1Click(Sender: TObject);
begin
dm.he.Open;
dm.he.Insert;
next;
end;

procedure Tban.DBGrid1KeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
if key = VK_RETURN	then
dm.he.edit;
next;
end;

end.