为啥activitieDropdownlist的值始终无法获取到

为什么activitieDropdownlist的值始终无法获取到？

本帖最后由 sincor 于 2013-06-22 18:17:19 编辑 视图层view

<br />
<br />
<form method="post"><br />
          <?php echo CHtml::activeDropDownList($m_subjectlist,'subject_name',$sb_list);?><br />
 <div class="row submit"><br />
     <?php echo CHtml::submitButton('显示我所选择的专业'); ?><br />
 </div><br />
 <?php  echo 'test'.$result.'111';?><br />
 </form><br />
<br />
<br />

控制器层

<br />
	public function actionDbdplist()<br />
	{<br />
    $m_subjectlist = new SubjectList();<br />
    $m_gradelist = new Grade;<br />
    $this->subject_list = SubjectList::model()->findAll(); <br />
    $this->grade_list = Grade::model()->findAll();                                         <br />
	//使用findAll 得到的结果是数据对象所以这样小小处理一下吧他们转换成数组:<br />
    foreach($this->subject_list as $item)<br />
	{<br />
         $sb_list[$item->subject_id] = $item->subject_name;<br />
    }<br />
    foreach($this->grade_list as $item)<br />
	{<br />
         $gd_list[$item->grade_id] = $item->grade_name;<br />
    }<br />
<br />
<br />
<br />
	$result=$_POST['subject_name'];<br />
	<br />
<br />
    $this->render('dbdplist',array(<br />
               'm_subjectlist' => $m_subjectlist,<br />
               'm_gradelist' => $m_gradelist,<br />
               'subject_list'=>$this->subject_list,<br />
               'grade_list'=>$this->grade_list,<br />
               'sb_list'=>$sb_list,<br />
               'gd_list'=>$gd_list,<br />
               'result'=>$result,<br />
		'model'=>$model,));<br />
			  <br />
 }