只打开一个手风琴面板 vue.js / bootstrap vue
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【中文标题】只打开一个手风琴面板 vue.js / bootstrap vue【英文标题】:Open only one accordion panel vue.js / bootstrap vue 【发布时间】:2020-05-03 15:25:50 【问题描述】:构建一个 bootstrap-vue 手风琴,一切都按预期工作,但是,我只是添加了全部展开/折叠所有按钮,这些按钮也可以按预期工作,但现在我的问题是当我直接单击任何手风琴面板时,它们全部打开。有没有办法让他们只打开点击的面板?
html:
<div class="container container-accordion-one">
<!--expand all / collapse all row -->
<div class="row row-expand-collapse">
<div class="offset-md-1 col-expand-collapse">
<ul class="list-expand-collapse">
<li><a href="#/" @click="showCollapse = true" class="font__card-body">Expand All</a></li>
<li><a href="#/" @click="showCollapse = false" class="font__card-body">Collapse All</a></li>
</ul>
</div>
</div>
<!--end: expand all / collapse all row -->
<div class="row">
<div class="offset-md-1 accordion-style-one">
<div role="tablist">
<b-card no-body class="">
<b-card-header href="#" v-b-toggle.accordion-1 header-tag="header" class="accordion-header" role="tab">
<p class="font__accordion-header">Accordion 1</p>
<i class="fal fa-plus accordionClosed" />
<i class="fal fa-minus accordionOpen" />
</b-card-header>
<b-collapse id="accordion-1" v-model="showCollapse" role="tabpanel">
<b-card-body>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto distinctio enim fugit, inventore odio odit perferendis quas quo veritatis voluptate.</p>
</b-card-body>
</b-collapse>
</b-card>
<b-card no-body class="">
<b-card-header href="#" v-b-toggle.accordion-2 header-tag="header" class="accordion-header" role="tab">
<p class=" font__accordion-header">Accordion 2</p>
<i class="fal fa-plus accordionClosed" />
<i class="fal fa-minus accordionOpen" />
</b-card-header>
<b-collapse id="accordion-2" v-model="showCollapse" role="tabpanel">
<b-card-body>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto distinctio enim fugit, inventore odio odit perferendis quas quo veritatis voluptate.</p>
</b-card-body>
</b-collapse>
</b-card>
<b-card no-body class="">
<b-card-header href="#" v-b-toggle.accordion-3 header-tag="header" class="accordion-header" role="tab">
<p class=" font__accordion-header">Accordion 3</p>
<i class="fal fa-plus accordionClosed" />
<i class="fal fa-minus accordionOpen" />
</b-card-header>
<b-collapse id="accordion-3" v-model="showCollapse" role="tabpanel">
<b-card-body>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Architecto distinctio enim fugit, inventore odio odit perferendis quas quo veritatis voluptate.</p>
</b-card-body>
</b-collapse>
</b-card>
</div>
</div>
</div>
</div>
js:
export default
name: 'm',
components:
LinksTo
,
data()
return
showCollapse: false
;
;
【问题讨论】:
每次折叠都需要有自己的 v-model 变量(可以使用真/假值数组)。由于您将所有折叠都绑定到同一个 v-model,当一个打开时它们都会打开,因此需要单独的 v-model 【参考方案1】:您必须为每个标签声明一个单独的 showCollapse 标志。在 shwo/collapse all 中打开/关闭所有这些。
【讨论】:
【参考方案2】:编辑:
使用 DRY 原则,您最好将手风琴内容分解为数据,并且只编写一次标记,然后循环遍历您的数据。然后,您可以跟踪每个手风琴的打开/关闭状态。
在您的代码中,每个手风琴都以同一个变量为模型,因此它们只能全部打开或全部关闭。每个手风琴都需要有一个单独的状态。
示例:(已简化,因此更易于阅读,但您可以使用 bootstrap 执行相同操作)
new Vue(
el: "#app",
data:
allClosed: true,
items: [
title: 'title 1',
description: 'description one',
open: false
,
title: 'title 2',
description: 'description two',
open: false
,
title: 'title 3',
description: 'description three',
open: false
],
,
methods:
openCloseAll()
this.allClosed = !this.allClosed
if (this.allClosed) this.items.map(x => x.open = false)
else this.items.map(x => x.open = true)
)
.accordian
margin: 8px 0;
cursor: pointer;
background: pink;
padding: 0.25em;
<div id="app">
<div>
<button @click="openCloseAll()">
<template v-if="allClosed">Open</template>
<template v-else>Close</template>
All
</button>
</div>
<div v-for="(item, i) in items" class="accordian" @click="item.open = !item.open">
<span> item.title </span>
<br />
<span v-if="item.open"> item.description </span>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
之前的建议:
这是实现此类功能的一种方式:
new Vue(
el: "#app",
data:
items: ['one', 'two', 'three', 'four', 'five'],
openItems: [],
openAll: true
,
methods:
toggle(i)
const index = this.openItems.findIndex(x => x === i)
if (index !== -1) this.openItems.splice(index, 1)
else this.openItems.push(i)
,
openCloseAll()
if (this.openAll) this.items.forEach((x, i) => this.openItems.push(i))
else this.openItems = []
this.openAll = !this.openAll
)
.accordian
margin: 8px 0;
cursor: pointer;
background: pink;
padding: 0.25em;
<div id="app">
<div>
<button @click="openCloseAll()">
<template v-if="openAll">Open</template>
<template v-else>Close</template>
All
</button>
</div>
<div v-for="(item, i) in items" class="accordian" @click="toggle(i)">
item
<span v-if="openItems.includes(i)">opened</span>
<span v-else>closed</span>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
【讨论】:
欣赏答案,但我需要为这个项目使用这个引导插件。伟大的工作虽然:)【参考方案3】:由于您希望每个折叠都能够单独打开或关闭,因此您需要为每个折叠设置一个 v-model
变量。下面我使用一个数组来存储折叠状态:
<template>
<div>
<b-button @click="expandAll">Expand all</b-button>
<b-button @click="collapseAll">Collapse all</b-button>
<b-button block v-b-toggle.accordion-1 class="mt-2">Accordion 1</b-button>
<b-collapse id="accordion-1" v-model="collapseStates[0]">
<div>Lorem ipsum dolor sit amet.</div>
</b-collapse>
<b-button block v-b-toggle.accordion-2 class="mt-2">Accordion 2</b-button>
<b-collapse id="accordion-2" v-model="collapseStates[1]">
<div>Lorem ipsum dolor sit amet.</div>
</b-collapse>
<b-button block v-b-toggle.accordion-3 class="mt-2">Accordion 3</b-button>
<b-collapse id="accordion-3" v-model="collapseStates[2]">
<div>Lorem ipsum dolor sit amet.</div>
</b-collapse>
</div>
</template>
<script>
export default
data()
return
collapseStates: [false, false, false]
,
methods:
expandAll()
this.collapseStates = this.collapseStates.map(x => true)
,
collapseAll()
this.collapseStates = this.collapseStates.map(x => false)
</script>
请参阅:https://jsfiddle.net/p60zktLs/ 的工作小提琴
【讨论】:
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