我正在尝试为产品,类别 - 子类别 - 子子类别创建3个下拉菜单 例如:category-health,beauty and personal ==> subcategory-makeup ==> subsubcategory-眼线笔。主要类别填充正确,子类别应根据用户选择填充,如果他们选择健康,美容个人护理,那么它应填充子类别。我编写了一个ajax更改函数来动态地从用户获取值并重新加载页面。但是,它正在从用户接收值但未填充子类别。在以下编码片段中,如果更改了cat_id,则会触发此函数。但是,即使用户在主类别中选择了一个选项,cat_id也不会收到任何值。请帮助我或建议我需要做些什么来解决这个问题....
$(document).ready(function(){
$('#cat_id').change(function()
{
var categoryId = $(this).val();
// alert(categoryId);
$.post("<?php echo DEFAULT_URL ?>/addProduct/ajax_getSubCategory", {categoryId: categoryId}, function(data)
{
if (data) {
// $('#cat_id').html(data);
$('#subcat_id').html(data);
$('#subsubcat_id').html('<option>Select Sub Sub Category</option>');
}
});
});
});
答案 0 :(得分:0)
这可能是问题的根源:
更改:
var categoryId = $(this).val();
到:
var categoryId = $(this).find(':selected').val();
目前您正在尝试获取下拉列表的值而不是其选定值。
答案 1 :(得分:0)
这是我用于下拉表格的HTML代码...
/ addProduct'enctype ='multipart / form-data'&gt;
<fieldset>
<legend>Category Information</legend>
<div class="required">
<label for="category">Main Category
<font color="red" title="This field is required for registration.">*</font></label>
<?php if(isset($merchantData->membership_package) && $merchantData->membership_package==2)
$categoryId=1;
if(isset($categoryId) && $categoryId!='')
$whereCondition="category_id='".$categoryId."' && is_active='1' && parent_id='0' order by category_name";
else
$whereCondition="is_active='1' && parent_id='0' order by category_name";
?>
<?php
echo $obj_category->selectBox('cat_id', 'Select Category', 'category_id', 'category_name', isset($cat_id) ? $cat_id :"",$whereCondition, 'class="validate[required]"');
?>
<div class="clear"></div>
<small>Please select the best combination of category and sub-categories for your product</small>
</div>
<div class="required">
<label for="sub_category">Sub Category<font color="red" title="This field is required for registration.">*</font></label>
<?php
if (isset($cat_id) && !empty($cat_id)) {
echo $obj_category->selectBox('subcat_id', 'Select Sub Category', 'category_id', 'category_name',
isset($ subcat_id)? $ subcat_id:'',“is_active ='1'和parent_id ='”。 $ cat_id。 “'按类别排序”,“class =”验证[必需]“');
} else {
?>
<select name="subcat_id" id="subcat_id" title="Sub Category" class="validate[required]">
<option>Select Sub Category</option>
</select>
<?php } ?>
<div class="required">
<label for="sub_sub_category">Sub Sub Category<font color="red" title="This field is required for registration.">*</font></label>
<?php
if (isset($subcat_id) && !empty($subcat_id)) {
echo $obj_category->selectBox('subsubcat_id', 'Select Sub Sub Category', 'category_id', 'category_name', isset($subsubcat_id) ? $subsubcat_id : '', "is_active = '1' and parent_id ='" . $subcat_id . "' order by category_name", 'class="validate[required]"');
} else {
?>
<select name="subsubcat_id" id="subsubcat_id" title="Sub Sub Category" class="validate[required]">
<option>Select Sub Sub Category</option>
</select>
<?php } ?>
</div>
</fieldset>