unit14.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 Unit14;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,unit1,unit7, StdCtrls, Grids, DBGrids, ExtCtrls;

type
  TForm14 = class(TForm)
    Panel1: TPanel;
    DBGrid1: TDBGrid;
    ComboBox1: TComboBox;
    Label1: TLabel;
    Button1: TButton;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form14: TForm14;

implementation

uses Unit6;

{$R *.dfm}

procedure TForm14.Button2Click(Sender: TObject);
begin
form6.show;
form14.Close;
end;

procedure TForm14.FormShow(Sender: TObject);
var
search:string;
begin
datamodule7.ADOQuery1.Close;
datamodule7.ADOQuery1.SQL.Clear;
datamodule7.ADOQuery1.SQL.Add('select * from cc ');
datamodule7.ADOQuery1.open;
while not datamodule7.ADOQuery1.Eof do
begin
    search:=trim(datamodule7.ADOQuery1.FieldValues['课程号']);
    combobox1.Items.Add(search);
    datamodule7.ADOQuery1.Next;
end
end;

procedure TForm14.ComboBox1Change(Sender: TObject);
var
    str:string;
begin
    str:=trim(combobox1.Text);
    datamodule7.ADOQuery1.Close;
    datamodule7.ADOQuery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('select * from cc where 课程号='''+str+'''');
    datamodule7.ADOQuery1.Open;

end;

procedure TForm14.Button1Click(Sender: TObject);
begin
    try
    datamodule7.ADOConnection1.BeginTrans;
    datamodule7.adoquery1.close;
    datamodule7.adoquery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('insert into sc values(:学生号,:课程号,:分数)');
    datamodule7.ADOQuery1.Parameters.ParamByName('学生号').Value := form1.edit1.Text;
    datamodule7.ADOQuery1.Parameters.ParamByName('课程号').Value := combobox1.Text;
    datamodule7.ADOQuery1.Parameters.ParamByName('分数').Value := '';
    //datamodule7.ADOQuery1.Parameters.ParamByName('系别').Value := combobox1.Text;
    //datamodule7.ADOQuery1.Parameters.ParamByName('专业').Value := combobox2.Text;
    //datamodule7.ADOQuery1.Parameters.ParamByName('课程类别').Value := combobox3.Text;
    //datamodule7.ADOQuery1.Parameters.ParamByName('教材').Value := combobox4.Text;
    //datamodule7.ADOQuery1.Parameters.ParamByName('学年').Value := combobox5.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;

end.