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The Bootstrap-Vue component and College Gray Bag Mini Shoulder Women Rucksack School Satchel Leather pack ZHANGVIP Backpack Travel Tiny v-b-toggle directive allows you to toggle content visibility on your pages. Includes support for making accordions.

<div>
  <b-btn v-b-toggle.collapse1 variant="primary">Toggle Collapseb-btn>
  <b-collapse id="collapse1" class="mt-2">
    <b-card>
      <p class="card-text">Collapse contents Herep>
      <b-btn v-b-toggle.collapse1_inner size="sm">Toggle Inner Collapseb-btn>
      <b-collapse id=collapse1_inner class="mt-2">
        <b-card>Hello!b-card>
      b-collapse>
    b-card>
  b-collapse>
div>


Usage

Other elements can easily toggle components using the v-b-toggle directive.

<div>
  
  <b-btn v-b-toggle.collapse2 class="m-1">Toggle Collapseb-btn>

  
  <b-btn v-b-toggle="'collapse2'" class="m-1">Toggle Collapseb-btn>

  
  <b-collapse id="collapse2">
    <b-card>
      I am collapsable content!
    b-card>
  b-collapse>
div>


Initial visibility (start expanded)

To make the show initially, set the visible prop:

I should start open!
<div>
  <b-btn v-b-toggle.collapse3 class="m-1">Toggle CollapseCollege Mini Backpack Rucksack Tiny pack Bag Women Satchel School Travel Gray Leather Shoulder ZHANGVIP b-btn>
  <b-collapse visible id="collapse3">
    <b-card>
      I should start open!
    b-card>
  b-collapse>
div>


v-model support

The component's collapsed (visible) state can also be set with v-model which binds internally to the visible prop.

Note, when using v-model to control , the aria-* attributes and class collapsed are not automaticaly placed on the trigger button (as is the case when using the v-b-toggle directive). In this example we must control them ourselves.

I should start open!
<template>
  <div>
    <b-btn @click="showCollapse = !showCollapse"
           :class="showCollapse ? 'collapsed' : null"
           aria-controls="collapse4"
           :aria-expanded=Women School Shoulder pack Backpack Bag College Mini Travel Gray Tiny ZHANGVIP Leather Rucksack Satchel "showCollapse ? 'true' : 'false'">
      Toggle Collapse
    b-btn>
    <b-collapse class="mt-2" v-model="showCollapse"Practical Shining Pleated Party Evening Satin Rhinestones Rose Damara Handbag 7Sdx6pqnSw id="collapse4">
      <b-card>
        I should start open!
      b-card>
    b-collapse>
  div>
template>

<script>
export default {
  data () {
    return {
      showCollapse: true
    }
  }
}
script>

<-- collapse-4.vue -->

Trigger multiple collapse elements

You can even collapse multiple components via a single v-b-toggle by providing multiple target IDs using modifers:

<div>
  
  <b-btn v-b-toggle.collapseA.collapseB>Toggle Both Collapse A and Bb-btn>

  
  <b-collapse id=Shoulder Satchel Bag pack Tiny Gray Mini Backpack Rucksack Travel School College Women ZHANGVIP Leather "collapseA" class="mt-2">
    <b-card>
      I am collapsable content A!
    b-card>
  b-collapse>
  <b-collapse id="collapseB" Gray ZHANGVIP School Backpack pack Bag Mini Tiny Leather Travel College Satchel Shoulder Women Rucksack class="mt-2">
    <Rucksack Leather Tiny Backpack Travel ZHANGVIP School Women pack Shoulder Mini College Bag Satchel Gray b-card>
      I am collapsable content B!
    b-card>
  b-collapse>
div>


Accordion Support

Turn a group of components into an accordion by supplying an accordion group identifier via the accordion prop:

I start opened because visible is true

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 VHS.

<template>
  <div role="tablist">
    <b-card no-body class="mb-1">
      <b-card-header header-tag="header" class="p-1" role="tab">
        <b-btn block href="#" v-b-toggle.accordion1 variant="info">Accordion 1b-btn>
      b-card-header>
      <b-collapse Women School ZHANGVIP pack Satchel Tiny Shoulder Mini Gray Bag Leather Travel Rucksack Backpack College id="accordion1" visible accordion="my-accordion" role="tabpanel">
        <b-card-body>
          <p class="card-text">
            I start opened because <code>visiblecode> is <code>truecode>
          p>
          <p class="card-text">
            {{ text }}
          p>
        b-card-body>
      b-collapse>
    b-card>
    <Backpack Satchel Gray Travel Bag School Mini Tiny Shoulder ZHANGVIP Women College Leather pack Rucksack b-card Mini Women Rucksack Shoulder Leather Tiny College Bag Satchel Gray School ZHANGVIP pack Travel Backpack no-body class="mb-1">
      <b-card-header header-tag="header" class="p-1" role="tab">
        <Women College Gray Tiny Leather Shoulder ZHANGVIP School Bag Satchel Backpack Travel Mini pack Rucksack b-btn block href="#" v-b-toggle.accordion2 variant="info">Accordion 2b-btn>
      b-card-headerRivet Tote Numkuda Pink Shoulder Messenger Hobo Women Bags Handbag Purse 561xXq1v>
      <b-collapse id="accordion2" accordion="my-accordion" role="tabpanel">
        <b-card-body>
          <p class="card-text">
            {{ text }}
          p>
        b-card-body>
      b-collapse>
    b-card>
    <b-card no-body class="mb-1">
      <b-card-header header-tag="header" class="p-1" role=Mini Backpack ZHANGVIP Satchel Gray Travel Leather Bag School pack Shoulder Rucksack College Tiny Women "tab">
        <b-btn block href="#" v-b-toggle.accordion3 variant="info">Accordion 3b-btn>
      pack Mini Leather Women Backpack ZHANGVIP Rucksack Bag Gray Tiny School Travel Shoulder College Satchel b-card-header>
      <b-collapse id="accordion3" accordion="my-accordion" role="tabpanel">
        <b-card-body>
          <p class="card-text">
            {{ text }}
          p>
        b-card-body>
      b-collapse>
    b-card>
  div>
template>

<script>
export default {
  data () {
    return {
      text: ` 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 VHS. `
    }
  }
}
script>


Notes:

  • When using accordion mode, make sure you place the trigger elements and components inside an element with Gray ZHANGVIP Mini Bag Leather Women School Backpack College Shoulder pack Tiny Rucksack Satchel Travel role="tablist" and set role="tab" on each trigger element's container (each trigger element should be wrapped) in order to help screen reader users navigate the accordion group.
  • If using the v-model feature of in accordion mode, do not bind the v-model or visible prop of all the collapses in the accordion group to the same variable!
  • Ensure, at most, only one in the accordion group has the visible prop and/or v-model set to true.

Hiding and showing content in the toggle button based on collapse state

When using the v-b-toggle directive, the class collapsedElegant Blue Bag Genuine Purse Fashion Leather for BOYATU Backpack Travel Women Rucksack vwPd0Rx will automatically be placed on the trigger element when the collapse is closed, and removed when open. You can use this class to display or hide content within the togger via custom CSS:

Example HTML markup:

<b-btn v-b-toggle.myCollapse>
  <span class="when-opened">Closespan>
  <span class="when-closed">Openspan>
  My Collapse
b-btn>
<b-collapse id="myCollapse">
  
b-collapse>

Example Custom CSS:

.collapsed > .when-opened,
:not(.collapsed) > .when-closed {
  display: none;
}

Accessibility

The v-b-toggle directive will automatically add the ARIA attributes aria-controls and aria-expanded to the component that the directive appears on (as well as add the class collapsed when not expanded). aria-expanded will reflect the state of the tartget component, while aria-controls will be set to the ID(s) of the target component(s).

If using v-model to set the visible state instead of the directive v-b-toggle, you will be required to, on the toggle element, add the aria-controls and other appropriate attributes and classes yourself.

While the v-b-toggle directive can be placed on almost any HTML element or Vue component, it is reccomended to use a button or link (or similar component) to act as your toggler. Otherwise your trigger elements may be inaccessible to keyboard or screen reader users. If you do place them on something other than a button or link (or similar component), you should add the attributes tabindex="0" and role="button" to allow users of assistive technology to reach your trigger element.

When using accordion mode, make sure you place the trigger elements and components inside an element with role="tablist" and set role="tab" on each trigger element's container in order to help screen reader users navigate the accordion group. Unfortunately, Boostrap-Vue cannot apply those roles for you automaticaly, as it depends on your final document markup.

Component Reference

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Importing Individual Components

Component Import Path
bootstrap-vue/es/components/collapse/collapse

Example:

import bCollapse from 'bootstrap-vue/es/components/collapse/collapse';
Vue.component('b-collapse', bCollapse);

Importing Individual Directives

Directive Import Path
v-b-toggle bootstrap-vue/es/directives/toggle/toggle

Example:

Shoulder Rucksack School Travel Women Satchel Gray Backpack Tiny ZHANGVIP Mini pack Bag Leather College import vBToggle from 'bootstrap-vue/es/directives/toggle/toggle';
Vue.directive('b-toggle', vBToggle);
// Note Vue automatically prefixes the directive name with 'v-'

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