使用此代码,如何展开和折叠..用一个按钮切换 ElementPlus Vue3 库的所有 el-collapse-items ?
<template> <div class="demo-collapse"> <el-collapse v-model="activeName" accordion> <el-collapse-item title="Consistency" name="1"> <script lang="ts" setup> import { ref } from 'vue' const activeName = ref('1') </script>
https://element-plus.org/en-US/component/collapse.html#accordion
P粉3478048962024-01-17 09:01:43
请看一下以下代码片段:
const { ref } = Vue const app = Vue.createApp({ setup() { const items = ref([{id: 1, title: "first", text: "aaaaaaaaaaaa"}, {id: 2, title: "second", text: "bbbbbbbbbbbb"}, {id: 3, title: "third", text: "ccccccccccc"}]) const activeName = ref([1]); const toggleAll = () => { activeName.value = activeName.value.length === items.value.length ? [] : items.value.map(i => i.id) } return { items, activeName, toggleAll }; }, }) app.use(ElementPlus); app.mount('#demo')
sssccc sssccctoggle all {{ item.text }}
P粉2519031632024-01-17 00:46:48
您无法在手风琴模式下执行此操作。正如文档所述:
为此,您必须删除 accordion 属性并将 activeName 值更改为数组,就像文档中一样:
const activeNames = ref(['1'])
要展开/折叠所有项目,您可以创建一个函数,该函数将更改 activeNames 的值以包含 el-collapse-item< 的所有< 的所有名称 /em> 组件或为空,例如
toggleElements() { if(activeName.value.length) { activeName.value = []; } else { activeName.value = ['1', '2', '3', ...]; } }