详解Vue2 无限级分类(添加,删除,修改)
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2022-06-29 22:50:54
本人对vue不是很懂,搜索了很多关于vue2 无限级分类介绍,下面我来记录一下,有需要了解vue2 无限级分类的朋友可参考。希望此文章对各位有所帮助。
<...
本人对vue不是很懂,搜索了很多关于vue2 无限级分类介绍,下面我来记录一下,有需要了解vue2 无限级分类的朋友可参考。希望此文章对各位有所帮助。
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>vue 树</title>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<style type="text/css">
a{color: #333; text-decoration: none;}
ul{padding-left: 15px;}
</style>
</head>
<body>
<div id="app">
{{items}}
<treelist v-for="(val, index) in items" :item="val" @remove="delitem(index)"></treelist>
</div>
<template id="treelist-template">
<ul>
<div style="padding:5px 0;">
<a v-if="isfolder" @click="toggle()">[{{open ? '-' : '+'}}]</a>
<a v-else style="color:#fff;">[+]</a>
<input type="number" style="width:80px;" v-model="item.sort">
<input type="text" size="30" v-model="item.name" placeholder="岗位名称">
<button type="button" @click="addchild()">添加</button>
<button type="button" @click="$emit('remove')" v-if="!isfolder">删除</button>
</div>
<ul v-show="open" v-if="isfolder">
<treelist v-for="(val, index) in item.children" :item="val" @remove="delitem(index)"></treelist>
</ul>
</ul>
</template>
<script>
window.onload = function(){
//treelist组件
vue.component('treelist', {
template: '#treelist-template',
props: {
item: object
},
data: function() {
return {
open: false
}
},
computed: {
isfolder: function() {
return this.item.children && this.item.children.length
}
},
methods: {
toggle: function() {
if (this.isfolder) {
this.open = !this.open
}
},
addchild: function() {
/*添加内容但不同步到服务器*/
if (!this.isfolder) {
vue.set(this.item, 'children', [])
}
this.open = true
this.item.children.push({
sort: 0,
name: '',
status: 1,
parent_id: this.item['id']
})
},
delitem: function(index){
this.item['children'].splice(index, 1)
}
}
})
new vue({
el: '#app',
data:{
mydata: {},
items: [
{"id":"10","parent_id":"0","sort":"0","name":"其它","status":"0"},
{"id":"12","parent_id":"0","sort":"0","name":"测试","status":"0"},
{"id":"1","parent_id":"0","sort":"0","name":"水果","status":"0",
"children":[
{"id":"4","parent_id":"1","sort":"0","name":"香蕉","status":"0"}
]
},
{"id":"2","parent_id":"0","sort":"0","name":"饮料","status":"0",
"children":[
{"id":"5","parent_id":"2","sort":"0","name":"可乐","status":"0"},
{"id":"6","parent_id":"2","sort":"0","name":"酒水","status":"0",
"children":[
{"id":"7","parent_id":"6","sort":"0","name":"啤酒","status":"0"}
]
}
]
},
{"id":"3","parent_id":"0","sort":"0","name":"美食","status":"0",
"children":[
{"id":"8","parent_id":"3","sort":"0","name":"红烧鱼","status":"0"}
]
}
]
},
methods: {
add:function(){
this.mydata['id'] = 100;//从服务器返回的id号
this.mydata['status'] = 0;
this.mydata['parent_id'] = 0;
this.items.push(this.mydata);
this.mydata = {};
},
delitem: function(index){
this.items.splice(index, 1)
}
}
});
}
</script>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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