unit1.pas

学生成绩管理系统

unit Unit1;

interface

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

type
  Tstudentmanage = class(TForm)
    DataSource1: TDataSource;
    Table1: TTable;
    panel2: TPanel;
    DBGrid1: TDBGrid;
    Panel1: TPanel;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBEdit7: TDBEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Panel3: TPanel;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    SpeedButton3: TSpeedButton;
    SpeedButton4: TSpeedButton;
    SpeedButton5: TSpeedButton;
    SpeedButton6: TSpeedButton;
    DBComboBox1: TDBComboBox;
    DBComboBox2: TDBComboBox;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure SpeedButton6Click(Sender: TObject);
    procedure SpeedButton5Click(Sender: TObject);
    procedure SpeedButton4Click(Sender: TObject);
    procedure SpeedButton3Click(Sender: TObject);
    procedure SpeedButton2Click(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  studentmanage: Tstudentmanage;

implementation

{$R *.dfm}

procedure Tstudentmanage.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
action:=cafree;
end;

procedure Tstudentmanage.SpeedButton6Click(Sender: TObject);
begin
close;
end;

procedure Tstudentmanage.SpeedButton5Click(Sender: TObject);
begin
table1.Cancel ;
end;

procedure Tstudentmanage.SpeedButton4Click(Sender: TObject);
begin
if Messagedlg('你确认要删除吗？',mtconfirmation,[mbyes,mbno],0)=6 then

table1.Delete
else
;

end;

procedure Tstudentmanage.SpeedButton3Click(Sender: TObject);
begin
try
table1.Post ;
speedbutton3.Enabled :=false;
 application.messagebox('数据已经成功保存','保存数据',0);
 except
 showmessage('输入错误！')  ;
 end;
end;

procedure Tstudentmanage.SpeedButton2Click(Sender: TObject);
begin
dbedit1.ReadOnly :=false;
  dbedit2.ReadOnly :=false;
 dbedit4.ReadOnly :=false;
 dbedit5.ReadOnly :=false;
 dbedit7.ReadOnly :=false;
 dbcombobox1.ReadOnly :=false;
 dbcombobox2.ReadOnly :=false;
table1.Edit ;
speedbutton3.Enabled :=true;

end;

procedure Tstudentmanage.SpeedButton1Click(Sender: TObject);
begin
speedbutton3.Enabled :=true;
 dbedit1.ReadOnly :=false;
  dbedit2.ReadOnly :=false;
 dbedit4.ReadOnly :=false;
 dbedit5.ReadOnly :=false;
 dbedit7.ReadOnly :=false;
 dbcombobox1.ReadOnly :=false;
 dbcombobox2.ReadOnly :=false;
table1.Append ;
 dbedit1.SetFocus ;
end;

end.