unit18.~pas

学生信息管理系统 学生信息管理系统 学生信息管理系统

unit Unit18;

interface

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

type
  Tkcxg = class(TForm)
    GroupBox1: TGroupBox;
    Label11: TLabel;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    SpeedButton3: TSpeedButton;
    StatusBar1: TStatusBar;
    DBGrid1: TDBGrid;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Edit1: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Edit2: TEdit;
    Label4: TLabel;
    Edit3: TEdit;
    Edit4: TEdit;
    procedure SpeedButton3Click(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
    procedure SpeedButton2Click(Sender: TObject);
    procedure ADOQuery1AfterScroll(DataSet: TDataSet);
    procedure FormActivate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  kcxg: Tkcxg;

implementation
 uses unit1;
{$R *.dfm}

procedure Tkcxg.SpeedButton3Click(Sender: TObject);
begin
close;
end;

procedure Tkcxg.SpeedButton1Click(Sender: TObject);
begin
if(edit1.Text='')or(edit2.Text='')or(edit3.Text='')or(edit4.Text='')
then
begin
 application.MessageBox('请输入内容','提示',0+64);
 exit;
end
else
begin
 ADOquery1.Edit;
 ADOquery1.FieldValues['courseID']:=edit1.Text;
 ADOquery1.FieldValues['courseName']:=edit2.Text;
 ADOquery1.FieldValues['courseType']:=edit3.Text;
 ADOquery1.FieldValues['teacher']:=edit4.Text;
 ADOquery1.Post;
{ edit2.Clear;
 edit3.Clear;
 edit4.Clear;
 edit5.Clear;
 edit6.Clear;
 edit7.Clear;
 edit8.Clear;
 edit9.Clear;
 edit10.Clear;
 edit1.SetFocus;
 edit1.SelectAll; }
 application.MessageBox('修改完毕','提示',0+64);
 end;
end;

procedure Tkcxg.SpeedButton2Click(Sender: TObject);
var
i:integer;
begin
 i:=application.MessageBox('你确定要删除吗？','删除提示',mb_YesNO);
 if i=7 then
 exit;
 ADOquery1.Delete;
end;



procedure Tkcxg.ADOQuery1AfterScroll(DataSet: TDataSet);
begin
edit1.Text:=ADOquery1.FieldValues['courseID'];
edit2.Text:=ADOquery1.FieldValues['courseName'];
edit3.Text:=ADOquery1.FieldValues['courseType'];
edit4.Text:=ADOquery1.FieldValues['teacher'];

end;

procedure Tkcxg.FormActivate(Sender: TObject);
var
sqlstr:string;
begin
sqlstr:='select *from t_course';
ADOquery1.Close;
ADOquery1.SQL.Clear;
ADOquery1.SQL.Add(sqlstr);
ADOquery1.Open;
end;

end.