Chim

I project pumpui chhunga content hmuh theihna chu class tlemte leh kan JavaScript plugins hmangin toggle rawh.

A hnathawh dan

Collapse JavaScript plugin hi content entir leh thup nan hman a ni. Button emaw anchor emaw hi trigger atan hman a ni a, chu chu element bik i toggle-naah mapped a ni. Element pakhat collapse chuan a heightvalue awm mek atanga 0. CSS hian animation a enkawl dan ngaihtuah chuan element paddingpakhatah i hmang thei lo. .collapseChu ai chuan class chu independent wrapping element atan hmang zawk ang che.

Entirna

A hnuaia button te hi click la, class thlak danglam hmangin element dang a lantir leh thup ang:

• .collapsecontent a thup thin
• .collapsingtransition neih laiin hman a ni
• .collapse.showthupui a lantir

data-targetA tlangpuiin attribute nei button hman kan rawt a ni. Semantic point of view atanga recommend loh laiin, hrefattribute (leh a role="button") nei link pawh i hmang thei bawk. Heng pahnihah hian the data-toggle="collapse"is required.

<p>
  <a class="btn btn-primary" data-toggle="collapse" href="#collapseExample" role="button" aria-expanded="false" aria-controls="collapseExample">
    Link with href
  </a>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseExample" aria-expanded="false" aria-controls="collapseExample">
    Button with data-target
  </button>
</p>
<div class="collapse" id="collapseExample">
  <div class="card card-body">
    Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
  </div>
</div>

Khamphei

Collapse plugin hian horizontal collapsing a support bawk. Modifier class chu a aiah .widthtransition turin add la, immediate child element ah a set rawh. Zalen takin mahni custom Sass ziak la, inline style hmang la, kan width utilities hmang rawh .widthheightwidth

<p>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#collapseWidthExample" aria-expanded="false" aria-controls="collapseWidthExample">
    Toggle width collapse
  </button>
</p>
<div style="min-height: 120px;">
  <div class="collapse width" id="collapseWidthExample">
    <div class="card card-body" style="width: 320px;">
      This is some placeholder content for a horizontal collapse. It's hidden by default and shown when triggered.
    </div>
  </div>
</div>

Target tam tak a awm

A <button>or hian a or attribute <a>-a JQuery selector hmanga reference-in element tam tak a lantir thei a, a thup thei bawk. Multiple emaw element pakhat chu an or attribute hmanga an reference vek chuan an lantir thei a, an thup thei bawkhrefdata-target<button><a>hrefdata-target

<p>
  <a class="btn btn-primary" data-toggle="collapse" href="#multiCollapseExample1" role="button" aria-expanded="false" aria-controls="multiCollapseExample1">Toggle first element</a>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target="#multiCollapseExample2" aria-expanded="false" aria-controls="multiCollapseExample2">Toggle second element</button>
  <button class="btn btn-primary" type="button" data-toggle="collapse" data-target=".multi-collapse" aria-expanded="false" aria-controls="multiCollapseExample1 multiCollapseExample2">Toggle both elements</button>
</p>
<div class="row">
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample1">
      <div class="card card-body">
        Some placeholder content for the first collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
  <div class="col">
    <div class="collapse multi-collapse" id="multiCollapseExample2">
      <div class="card card-body">
        Some placeholder content for the second collapse component of this multi-collapse example. This panel is hidden by default but revealed when the user activates the relevant trigger.
      </div>
    </div>
  </div>
</div>

Accordion entirnan

Card component hmang hian default collapse behavior chu extend la, accordion siam theih a ni. Accordion style dik taka tihhlawhtlin theih nan .accordionwrapper atan hmang ngei ang che.

<div class="accordion" id="accordionExample">
  <div class="card">
    <div class="card-header" id="headingOne">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
          Collapsible Group Item #1
        </button>
      </h2>
    </div>

    <div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
      <div class="card-body">
        Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the <code>.show</code> class.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingTwo">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left collapsed" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
          Collapsible Group Item #2
        </button>
      </h2>
    </div>
    <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionExample">
      <div class="card-body">
        Some placeholder content for the second accordion panel. This panel is hidden by default.
      </div>
    </div>
  </div>
  <div class="card">
    <div class="card-header" id="headingThree">
      <h2 class="mb-0">
        <button class="btn btn-link btn-block text-left collapsed" type="button" data-toggle="collapse" data-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
          Collapsible Group Item #3
        </button>
      </h2>
    </div>
    <div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
      <div class="card-body">
        And lastly, the placeholder content for the third and final accordion panel. This panel is hidden by default.
      </div>
    </div>
  </div>
</div>

A thlen theihna tur

aria-expandedControl element ah hian add ngei ngei tur a ni. He attribute hian control-a inzawm collapsible element dinhmun chu screen reader leh a ang chi assistive technology-ah chiang takin a tarlang a ni. Collapsible element chu default-a khar a nih chuan control element-a attribute chuan value aria-expanded="false". showClass hmangin collapsible element chu default-a open turin i set tawh a nih chuan aria-expanded="true"control-ah set zawk rawh. Plugin hian he attribute hi control-ah hian collapsible element hawn leh khar a nih leh nih loh a zirin automatic-in a toggle ang (JavaScript hmangin, emaw, user-in control element dang pawh collapsible element ang chiaha inzawm a trigger avangin). Control element-a HTML element chu button a nih loh chuan (eg, an <a>or <div>), attributerole="button"element-ah hian dah belh tur a ni.

I control element hian collapsible element pakhat a target a nih chuan – chu chu attribute chuan selector data-targeta kawhhmuh a nih chuan – control element-ah attribute chu i dah tur a ni a, chutah chuan of the collapsible element a awm tur a ni. Tunlai screen reader leh a ang chi assistive technology te chuan he attribute hi an hmang a, chu chuan a hmangtute chu collapsible element ngeia direct-a kal theihna tur shortcut dang a pe a ni.idaria-controlsid

Tuna Bootstrap hman mek hian ARIA Authoring Practices Guide accordion pattern -a tarlan keyboard interaction hrang hrangte chu a huam lo tih hre reng ang che - hengte hi nangmah ngeiin custom JavaScript nen i dah tel a ngai ang.

Hman dan tur

Collapse plugin hian heavy lifting handle turin class tlemte a hmang a:

• .collapsea thupui chu a thup thin
• .collapse.showa thupui chu a entir a
• .collapsingtransition a tan hunah a dah belh a, a zawh chuan a paih leh bawk

Heng class te hi _transitions.scss.

Data attribute hmangin a ni

Element ah add data-toggle="collapse"leh a data-targettih mai la, collapsible element pakhat emaw a aia tam emaw control chu automatic in a assign ang. Attribute hian data-targetcollapse apply tur CSS selector a pawm a. collapseCollapsible element ah hian class chu add ngei ngei tur a ni. Default open i duh chuan additional class kha add la show.

Collapsible area-a accordion ang chi group management dah belh tur chuan data attribute data-parent="#selector". Hei hi action-a hmuh theih nan demo en rawh.

JavaScript hmangin

Manual hmangin enable theih a ni:

$('.collapse').collapse()

Thil thlan theih a ni

Options chu data attribute emaw JavaScript hmangin pass theih a ni. Data attribute atan chuan option hming chu , ah hian append la data-, data-parent="".

Thiltih dan tur

.collapse(options)

I content chu collapsible element angin a activate thin. A pawm a, optional options a awm objectbawk .

$('#myCollapsible').collapse({
  toggle: false
})

.collapse('toggle')

Collapsible element chu show emaw hidden emaw ah a toggle thin. Collapsible element chu a takin a lan hma emaw a thup hmain (chu chu shown.bs.collapseor hidden.bs.collapseevent a thlen hmain) caller hnenah a kir leh thin.

.collapse('show')

Collapsible element a lantir. Collapsible element a lan tak tak hmain (chu chu shown.bs.collapseevent a thlen hmain) caller hnenah a kir leh thin.

.collapse('hide')

Collapsible element a thup thei. Collapsible element chu a takin a thup hmain (chu chu hidden.bs.collapseevent a thlen hmain) caller hnenah a kir leh thin.

.collapse('dispose')

Element pakhat collapse a tichhe thin.

Thil thlengte

Bootstrap-a collapse class hian collapse functionality-a hook theihna tur event tlemte a pholang a ni.

$('#myCollapsible').on('hidden.bs.collapse', function () {
  // do something...
})