unit2.pas

如何为 教师和学生准备方便易查的学习资源是课程编制面临的新的巨大的课题。在教学资源的选取上

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls,Unit7;

type
  TForm2 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Label3: TLabel;
    Edit2: TEdit;
    Button1: TButton;
    Button2: TButton;
    ComboBox1: TComboBox;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

uses Unit1;

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
var
search:string;
begin
    search:=trim(edit1.Text);
    datamodule7.ADOQuery1.Close;
    datamodule7.ADOQuery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('select 教师号 from teacher where 教师号='''+search+'''');
    datamodule7.ADOQuery1.Prepared;
    datamodule7.ADOQuery1.Open;
  if not datamodule7.ADOQuery1.Eof then
  begin
  showmessage('号码已存在，请重新输入！');
  end
  else
  begin
    try
    datamodule7.ADOConnection1.BeginTrans;
    datamodule7.adoquery1.close;
    datamodule7.adoquery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('insert into teacher values(:教师号,:教师名,:系别)');
    datamodule7.ADOQuery1.Parameters.ParamByName('教师号').Value := edit1.Text;
    datamodule7.ADOQuery1.Parameters.ParamByName('教师名').Value := edit2.Text;
    datamodule7.ADOQuery1.Parameters.ParamByName('系别').Value := combobox1.Text;
    showmessage('请确认输入信息！');
    datamodule7.adoquery1.Prepared;
    datamodule7.ADOQuery1.ExecSQL;
    showmessage('注册成功！') ;
    datamodule7.ADOConnection1.CommitTrans;
    except
    showmessage('注册失败！') ;
    datamodule7.ADOConnection1.RollbackTrans;
    end;
  end;
  edit1.Text:='';
  edit2.Text:='';
  combobox1.Text:='';
  form1.Show;
  form2.Close;
end;

procedure TForm2.Button2Click(Sender: TObject);
begin
form1.show;
form2.Close;
end;

end.