>I 必须依赖组合框
$this->addElement('Select', 'Category',array(
'label' => 'Category:',
'AutoComplete'=> true,
'multiOptions' => array('0' => '-Category-',$a->GetCategories(),'2' => '-Add category-'),
'required' => true ));
$this->addElement('Select', 'SubCategory',array(
'label' => 'Sub Category:',
'AutoComplete'=> true,
//'multiOptions' => array('0' => '-Select Category-'),
'required' => true ));
第二个是使用 Ajax 填充的
<script type="text/javascript">
//for send data i'll use jquery library
$(document).ready( function(){
$('#Category').change(function() {
var message=$('#Category option:selected').text();
if (message != '') {
$.ajax({
type: "GET",
dataType : 'json',
url: 'http://localhost/EverTags1/Authentification1/public/Product/add',
async: false,
data:{"message" : message},
success: function (respond) {
var json=JSON.stringify(respond);
var objet = eval('(' + json + ')');
e=objet.length;
var str = "";
for ( var count = 0 ; count < e; count++ ) {
str += "<option value='" + count + "'>" + objet[count].name+ "</option>"
}
$("#SubCategory").empty().append(""+str);
}
});
}
});
});
</script>
元素已正确加载到第二个组合框中。但是当我提交时，第二个组合框的内容消失了。如何显示它们
您需要
在每个 Ajax 请求后更新多选项。 我用会话来做到这一点
public function getsubcategoriesAction()
{
if($this->_request->isXmlHttpRequest())
{
$session = new Zend_Session_Namespace('mySession');
$this->getRequest()->param('id',1)
$model = new Application_Model_DbTable_Subcategory();
$result = $model->getSubcategories($category);
// save the result to session
$session->result = $result;
$this->_helper->json($result);
}
}
以及在呈现表单的操作中
public function createAction()
{
//some code here
if($this->getRequest()->isPost()){
$session = new Zend_Session_Namespace('mySession');
$subCategory = $form->getelement('subCategory');
$subCategory->addMultiOptions($session->result); // get the result back from session
//some code here
}
}
您还需要在应用程序中启用会话.ini
resources.session.save_path = APPLICATION_PATH "/../data/session"
resources.session.use_only_cookies = true
resources.session.remember_me_seconds = 864000
将
selected='selected' 属性添加到第一个选项 #SubCategory 修复它吗？