Yii 1.1.3设置从属下拉部分2的选定值 [英] Yii 1.1.3 setting selected value of dependent dropdown part 2

问题描述

以前，我创建了一个问题我想知道如何设置从属下拉列表的选定值。这很容易，人建议我设置第二个参数。

Previously I've created a question where I was wondering how to set selected value for dependent dropdown. That was easy, man adviced me just set second parameter.

    echo CHtml::dropDownList('OpenLessons[Building]', $buildingClassID, $buildingList,array(
        'ajax' => array(
        'type'=>'POST', 
        'url'=>CController::createUrl('ajax/floorList'),
        'update'=>'#OpenLessons_Floor', 
        ))); 
    echo CHtml::dropDownList('OpenLessons[Floor]',$model->Class_ID, array(),array(
        'ajax' => array(
        'type'=>'POST', //request type  
        'url'=>CController::createUrl('ajax/roomList'),
        'update'=>'#OpenLessons_Class_ID',
        )));
    echo CHtml::dropDownList('OpenLessons[Class_ID]',$model->Class_ID, array());

其中 $ buildingClassId 是select的值。所以这样工作正常的第一选择。但是，如何为依赖设置相同？当我看着它的代码看起来像这样：

where $buildingClassId is value of select. So that works fine for first select. But how can I set the same for dependent ones? When I look at it's code it looks like this:

<select name="OpenLessons[Floor]" id="OpenLessons_Floor">
</select>

我预计它有一些选项，因为我为第一个设置默认值。所以即使我把第二个参数作为第二个参数，一些值不会被选中。
任何建议/建议？

更新我会提到我在XHR控制面板上看不到楼层列表。我该怎么做？

更新

I expected it to have some options, because I set default value for first one. So even if I put as second parameter of seconddropdown some value it wouln't be selected. Any advices/suggestions?
UPDATE I'd mention that I don't see at XHR console call of floorlist. How can I make it?
UPDATE

$(document).ready(function()
{
    $('#OpenLessons_Building').trigger('change');
    $('#OpenLessons_Building option').trigger('click');
}).on('change','#OpenLessons_Building',function()
{
    console.log('changed');
}).on('click','#OpenLessons_Building option',function()
{
    console.log('clicked');
});

尝试这样。发生了两个动作 - 改变和点击，因为我可以在控制台中看到输出，而依赖的数组仍然是空的。

Tried like this. Both actions - change and click has happened because I can see output in console, but the dependent arrays are still empty.

推荐答案

你应该使用$（＃OpenLessions_Building）。on（change，function（）{your code here}）;

You should use $("#OpenLessions_Building").on("change", function() { your code here });

触发功能实际上是在页面加载后立即执行下拉列表中的操作（更改或单击）。

The trigger function was actually does is execute the action (change or click in your case) of the dropdown as soon as the page loads.

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