I am facing an issue with a table containing hierarchical data in Vue. When attempting to remove a child using "array.splice", the DOM structure does not update reactively. Has anyone encountered this before? Are there any potential solutions?
This problem can be replicated using the example of a table on a Vuejs site.
var Main = {
data() {
return {
tableData: [{
id: 1,
date: '2016-05-02',
name: 'wangxiaohu'
}, {
id: 2,
date: '2016-05-04',
name: 'wangxiaohu'
}, {
id: 3,
date: '2016-05-01',
name: 'wangxiaohu',
children: [{
id: 31,
date: '2016-05-01',
name: 'wangxiaohu'
}, {
id: 32,
date: '2016-05-01',
name: 'wangxiaohu'
}]
}, {
id: 4,
date: '2016-05-03',
name: 'wangxiaohu'
}],
tableData1: [{
id: 1,
date: '2016-05-02',
name: 'wangxiaohu'
}, {
id: 2,
date: '2016-05-04',
name: 'wangxiaohu'
}, {
id: 3,
date: '2016-05-01',
name: 'wangxiaohu',
hasChildren: true
}, {
id: 4,
date: '2016-05-03',
name: 'wangxiaohu'
}]
}
},
methods: {
load(tree, treeNode, resolve) {
resolve([
{
id: 31,
date: '2016-05-01',
name: 'wangxiaohu'
}, {
id: 32,
date: '2016-05-01',
name: 'wangxiaohu'
}
])
},
removeRow(row){
this.tableData[2].children.splice(0,1);
//this.tableData.splice(0,1);
}
},
}
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')@import url("//unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b5d0d9d0d8d0dbc198c0dcf5879b829b87">[email protected]</a>/lib/theme-chalk/index.css");<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="abcec7cec6cec5df86dec2eb99859c8599">[email protected]</a>/lib/index.js"></script>
<div id="app">
<template>
<div>
<el-button @click="removeRow">
Delete child
</el-button>
<el-table
:data="tableData"
style="width: 100%;margin-bottom: 20px;"
border
row-key="id">
<el-table-column
prop="date"
label="日期"
sortable
width="180">
</el-table-column>
<el-table-column
prop="name"
label="name"
sortable
width="180">
</el-table-column>
</el-table>
<el-table
:data="tableData1"
style="width: 100%"
row-key="id"
border
lazy
:load="load"
>
<el-table-column
prop="date"
label="date"
width="180">
</el-table-column>
<el-table-column
prop="name"
label="name"
width="180">
</el-table-column>
</el-table>
</div>
</template>
</div>I am working with Vue 2.6.10 and element-ui 2.7.0