unit8.~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 Unit8;

interface

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

type
  TForm8 = class(TForm)
    Panel1: TPanel;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Label3: TLabel;
    ComboBox1: TComboBox;
    Label4: TLabel;
    ComboBox2: TComboBox;
    Label5: TLabel;
    ComboBox3: TComboBox;
    Label6: TLabel;
    ComboBox4: TComboBox;
    Label7: TLabel;
    ComboBox5: TComboBox;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure FormShow(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form8: TForm8;

implementation

uses Unit7, Unit4;

{$R *.dfm}

procedure TForm8.Button1Click(Sender: TObject);
var
search:string;
begin
    search:=trim(edit1.Text);
    datamodule7.ADOQuery1.Close;
    datamodule7.ADOQuery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('select 课程号 from cc where 课程号='''+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 cc values(:课程号,:课程名,:系别,:专业,:课程类别,:教材,:学年)');
    datamodule7.ADOQuery1.Parameters.ParamByName('课程号').Value := edit1.Text;
    datamodule7.ADOQuery1.Parameters.ParamByName('课程名').Value := edit2.Text;
    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;

procedure TForm8.Button2Click(Sender: TObject);
begin
form4.show;
form8.Close;
end;

procedure TForm8.ComboBox1Change(Sender: TObject);
var
    search:string;
begin
    search:=trim(combobox1.Text);
    datamodule7.ADOQuery1.Close;
    datamodule7.ADOQuery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('select 系名 from sys where 院名='''+search+'''');
    datamodule7.ADOQuery1.Prepared;
    datamodule7.ADOQuery1.Open;
    while not datamodule7.ADOQuery1.Eof do
    begin
        search:=datamodule7.ADOQuery1.FieldValues['系名'];
        combobox2.Items.Add(search);     //注意！1！！！！！！！！！！！
        datamodule7.ADOQuery1.Next;
    end
end;

procedure TForm8.FormShow(Sender: TObject);
var
search:string;
begin
    search:=trim(edit1.Text);
    datamodule7.ADOQuery1.Close;
    datamodule7.ADOQuery1.SQL.Clear;
    datamodule7.ADOQuery1.SQL.Add('select 教材 from cc where 课程号='''+search+'''');
    datamodule7.ADOQuery1.Prepared;
    datamodule7.ADOQuery1.Open;
    while not datamodule7.ADOQuery1.Eof do
    begin
        search:=datamodule7.ADOQuery1.FieldValues['教材'];
        combobox4.Items.Add(search);     //注意！1！！！！！！！！！！！
        datamodule7.ADOQuery1.Next;
    end
end;

end.