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我有一個選擇這樣定義(轉換成選擇2):閱讀選項屬性
<select class="form-control" name="Questions[3].ANSWER_LOOKUP_OPTION_ID" id="Questions[3].ANSWER_LOOKUP_OPTION_ID" multiple="">
<option value="57" data-index="1">Child Find/Public Awareness</option>
<option value="58" data-index="2">Referral</option>
<option value="59" data-index="3">Assessment/Evaluation</option>
<option value="60" data-index="4">IFSP Development</option>
<option value="61" data-index="5">Assistive Technology Services and Devices</option>
<option value="62" data-index="6">Audiology</option>
<option value="63" data-index="7">Auditory Services</option>
<option value="64" data-index="8">Specialized skills training</option>
<option value="65" data-index="9">Family Counseling</option>
</select>
使用此代碼,我想設置$ optionscsv文本到所有所選擇的選項的數據索引值而不是他們的val();
var $options = $('#Questions\\[3\\]\\.ANSWER_LOOKUP_OPTION_ID'),
$optionscsv = $('span#optionscsv');
$("#Questions\\[3\\]\\.ANSWER_LOOKUP_OPTION_ID")
.select2()
.on('change', function() {
$optionscsv.text($options.val());
});
當兒童查找/公衆意識+評價/評估+ IFSP發展選擇,上面顯示的代碼的結果:57, 59, 60
期望的結果是:1, 3, 4