为什么这个 Accordion Collapse "Open All/ Close All" 选项不起作用？
Why isn't this Accordion Collapse "Open All/ Close All" option working?
请参阅下面的代码段。默认情况下打开所有可折叠项目。当我单击 全部关闭 时，它们都关闭了。当我单击 全部打开 时，只有最上面的打开。如果我继续单击 全部打开 ，它只会切换第一个和第二个可折叠元素。
我想我已经将脚本设置为显示时折叠，隐藏时显示。
我在这里错过了什么？
$('.closeall').click(function(){
$('.accordion-collapse.show')
.collapse('hide');
});
$('.openall').click(function(){
$('.accordion-collapse:not(".show")')
.collapse('show');
});
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.bundle.min.js"></script>
<section class="page-section" id="">
<div class="container">
<div class="wow fadeIn">
<h2 class="text-center">Speaker Content</h2>
<div class="row">
<div class="col-sm-12">
<a href="#" class="btn btn-default openall">open all</a> <a href="#" class="btn btn-default closeall">close all</a>
</div>
</div>
<div class="accordion" id="accordionExample">
<div class="card no-border">
<div class="card-header no-bg" id="headingOne">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#confReg" aria-expanded="true" aria-controls="confReg">
Conference Registration
</button>
</h5>
</div>
<div id="confReg" class="accordion-collapse collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingTwo">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#bioHead" aria-expanded="false" aria-controls="bioHead">
Biography & Headshot
</button>
</h5>
</div>
<div id="bioHead" class="accordion-collapse collapse show" aria-labelledby="headingTwo" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#hotelRes" aria-expanded="false" aria-controls="hotelRes">
Hotel Reservations
</button>
</h5>
</div>
<div id="hotelRes" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#speakReimPol" aria-expanded="false" aria-controls="speakReimPol">
Speaker Reimbursement Policy
</button>
</h5>
</div>
<div id="speakReimPol" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#ppPres" aria-expanded="false" aria-controls="ppPres">
PowerPoint Presentation
</button>
</h5>
</div>
<div id="ppPres" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
</div>
</div>
</div>
</section>
这是一个令人困惑的问题。
但是不行。 BS（我喜欢称之为 Bootstrap）处理手风琴的方式只允许一次打开一个。所以当你打开一个时，所有其他的都会关闭。
我无法在 BS 的框架内找到一种方法来做到这一点；你可以自己想办法解决这个问题。如果我找到办法，我会更新这个答案。
Bootstrap 手风琴文档：https://getbootstrap.com/docs/4.1/components/collapse/#options
伙计们，我想我找到了解决这个问题的方法 (Bootstrap 5)。
主要问题是在“查看全部”状态之前关闭所有打开的手风琴，在“隐藏所有”状态之前打开所有关闭的手风琴也是如此。
已编辑：我采用了这种方法，同时可以同时打开多个手风琴。我实际上并没有尝试一次“只显示一个手风琴”。
<script>
$('#btnviewall').on('click', function () {
console.log('clicked');
if ($(this).find('strong').text() == 'View All') {
$('.collapse').each(function (accordion) {
if ($(this).hasClass("show")) {
$(this).removeClass("show");
}
$(this).collapse('toggle');
})
$(this).find('strong').text('Hide All');
} else {
$('.collapse').each(function (accordion) {
if (!($(this).hasClass("show")) ) {
$(this).addClass("show");
}
$(this).collapse('toggle');
})
$(this).find('strong').text('View All');
}
});
</script>
请参阅下面的代码段。默认情况下打开所有可折叠项目。当我单击 全部关闭 时，它们都关闭了。当我单击 全部打开 时，只有最上面的打开。如果我继续单击 全部打开 ，它只会切换第一个和第二个可折叠元素。
我想我已经将脚本设置为显示时折叠，隐藏时显示。
我在这里错过了什么？
$('.closeall').click(function(){
$('.accordion-collapse.show')
.collapse('hide');
});
$('.openall').click(function(){
$('.accordion-collapse:not(".show")')
.collapse('show');
});
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.bundle.min.js"></script>
<section class="page-section" id="">
<div class="container">
<div class="wow fadeIn">
<h2 class="text-center">Speaker Content</h2>
<div class="row">
<div class="col-sm-12">
<a href="#" class="btn btn-default openall">open all</a> <a href="#" class="btn btn-default closeall">close all</a>
</div>
</div>
<div class="accordion" id="accordionExample">
<div class="card no-border">
<div class="card-header no-bg" id="headingOne">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#confReg" aria-expanded="true" aria-controls="confReg">
Conference Registration
</button>
</h5>
</div>
<div id="confReg" class="accordion-collapse collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingTwo">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#bioHead" aria-expanded="false" aria-controls="bioHead">
Biography & Headshot
</button>
</h5>
</div>
<div id="bioHead" class="accordion-collapse collapse show" aria-labelledby="headingTwo" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#hotelRes" aria-expanded="false" aria-controls="hotelRes">
Hotel Reservations
</button>
</h5>
</div>
<div id="hotelRes" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#speakReimPol" aria-expanded="false" aria-controls="speakReimPol">
Speaker Reimbursement Policy
</button>
</h5>
</div>
<div id="speakReimPol" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
<div class="card no-border">
<div class="card-header no-bg" id="headingThree">
<h5 class="mb-0">
<button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#ppPres" aria-expanded="false" aria-controls="ppPres">
PowerPoint Presentation
</button>
</h5>
</div>
<div id="ppPres" class="accordion-collapse collapse show" aria-labelledby="headingThree" data-parent="#accordionExample">
<div class="card-body bg-ism-grey">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
</div>
</div>
</div>
</section>
这是一个令人困惑的问题。
但是不行。 BS（我喜欢称之为 Bootstrap）处理手风琴的方式只允许一次打开一个。所以当你打开一个时，所有其他的都会关闭。
我无法在 BS 的框架内找到一种方法来做到这一点；你可以自己想办法解决这个问题。如果我找到办法，我会更新这个答案。
Bootstrap 手风琴文档：https://getbootstrap.com/docs/4.1/components/collapse/#options
伙计们，我想我找到了解决这个问题的方法 (Bootstrap 5)。
主要问题是在“查看全部”状态之前关闭所有打开的手风琴，在“隐藏所有”状态之前打开所有关闭的手风琴也是如此。
已编辑：我采用了这种方法，同时可以同时打开多个手风琴。我实际上并没有尝试一次“只显示一个手风琴”。
<script>
$('#btnviewall').on('click', function () {
console.log('clicked');
if ($(this).find('strong').text() == 'View All') {
$('.collapse').each(function (accordion) {
if ($(this).hasClass("show")) {
$(this).removeClass("show");
}
$(this).collapse('toggle');
})
$(this).find('strong').text('Hide All');
} else {
$('.collapse').each(function (accordion) {
if (!($(this).hasClass("show")) ) {
$(this).addClass("show");
}
$(this).collapse('toggle');
})
$(this).find('strong').text('View All');
}
});
</script>