我需要有条理地隐藏/显示某个选项组(<optgroup>
),我已经尝试过这个问题的最佳解决方案 - Select2: Hide certain options dynamically
它隐藏了每个选项(根据需要),但组标题保持可见,但它没有子项。如何隐藏select2中的整个选项组?
答案 0 :(得分:0)
我认为您可以仅使用数据阵列源禁用Select2中的<optgroup>
,而不是使用HTML中的选项。
请参阅Select2 github repo上的问题:
这是一个片段,举例说明了这两种方法:
var data = [{
text: 'group1',
children: [{
id: '1',
text: 'option 1'
}, {
id: '2',
text: 'option 2',
disabled: false,
}, {
id: '3',
text: 'option 3',
disabled: true,
}]
},
{
text: 'group2',
disabled: true,
children: [{
id: '4',
text: 'option 4',
disabled: true,
}, {
id: '5',
text: 'option 5'
}]
}];
$(document).ready(function() {
$('#test').select2({ data: data, });
$('#test2').select2();
});
var group2Disabled = true;
toggleGroup2 = function() {
group2Disabled = !group2Disabled;
console.log("toggleGroup2", group2Disabled);
var gr2 = data.find(findGroup2);
gr2.disabled = !gr2.disabled;
$('#test').empty().select2({data:data}).trigger("change");
}
function findGroup2(el) {
return el.text === 'group2';
}
select {
width: 40%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/css/select2.min.css" rel="stylesheet"/>
<label>Select List #1 (data)</label>
<select id="test"></select>
<button onclick="toggleGroup2()">toggle disable Group2</button>
<br><br><br>
<label>Select List #2 (html)</label>
<select id="test2">
<optgroup label="group1">
<option>option 1</option>
<option>option 2</option>
<option disabled="true">option 3</option>
</optgroup>
<optgroup label="group2" disabled="true">
<option disabled="true">option 4</option>
<option>option 5</option>
</optgroup>
</select>
或者你可以查看这个jsfiddle:https://jsfiddle.net/beaver71/u0jekg44/