溫馨提示×
您好，登錄后才能下訂單哦！
點(diǎn)擊 登錄注冊(cè) 即表示同意《億速云用戶服務(wù)條款》
您好，登錄后才能下訂單哦！
這篇文章主要講解了“如何在vue中利用遞歸組件實(shí)現(xiàn)一個(gè)樹形控件”，文中的講解內(nèi)容簡(jiǎn)單清晰，易于學(xué)習(xí)與理解，下面請(qǐng)大家跟著小編的思路慢慢深入，一起來(lái)研究和學(xué)習(xí)“如何在vue中利用遞歸組件實(shí)現(xiàn)一個(gè)樹形控件”吧！
vue版的樹形控件
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>樹形結(jié)構(gòu)2</title> </head> <body> <div id = "app"> <tree :folder = "trees" :select = "select"></tree> </div> <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> <script> Vue.component('tree', { name:"tree", template:`<ul> <li v-for = "item in folder"> <span @click = "select(item)">{{ item.label }}</span> <tree v-if = "item.children" :folder = "item.children" :select = "select"></tree> </li> </ul>`, props:["folder","select"], }) // <tree v-if = "item.children" :folder = "item.children"></tree> var app = new Vue({ el:"#app", data:{ msg:"hello world", trees: [ { id:1, label:"1級(jí)目錄1", show:false, children:[ { id:"1-1", label:"1.1目錄" }, { id:"1-2", label:"1.2目錄" }, { id:"1-3", label:"1.3目錄" }, ] }, { id:2, label:"1級(jí)目錄2", show:false }, { id:3, label:"1級(jí)目錄3", show:false, children:[ { id:"3-1", label:"3.1目錄" }, { id:"3-2", label:"3.2目錄", show:false, children:[ { id:"3-2-1", label:"3.2.1目錄" }, { id:"3-2-2", label:"3.2.2目錄" }, { id:"3-2-3", label:"3.2.3目錄" } ] } ] }, { id:4, label:"1級(jí)目錄4", show:false, children:[ { id:"4-1", label:"4.1目錄" }, { id:"4-2", label:"4.2目錄", show:false, children:[ { id:"4-2-1", label:"4.2.1目錄" } ] } ] }, { id:5, label:"1級(jí)目錄5", show:false, children:[ { id:"5-1", label:"5.1目錄", show:false, children:[ { id:"5-1-1", label:"5.1.1目錄" }, { id:"5-1-2", label:"5.1.2目錄", show:false, children:[ { id:"5-1-2-1", label:"5.1.2.1目錄" }, ] } ] }, { id:"5-2", label:"5.2目錄", show:false } ] }, ] }, methods:{ clickHandler(){ console.log(23333); }, select(data){ console.log(data); } }, mounted(){ console.log(this.trees); } }) </script> </body> </html>
看下結(jié)果
當(dāng)然我用的全局組件，如果用vue-cli搭建的環(huán)境是一樣的，引入組件就可以了，但是一定要注意，組件內(nèi)必須要用name屬性，而且name的名稱要和組件名稱（組件標(biāo)簽名稱）一致才可以
貼一個(gè)項(xiàng)目中用的模板吧，相當(dāng)于做筆記了
<template>
<ul class = "dataBaseTree">
<li v-for = "(item,index) in folder" :key = "index">
<span @click = "select(item)" :class = "{'active':currentId == item.id}">
<i class = "folderIcon" v-if = "item.children">
<icon :icon = "'xiala'" v-if = "item.show"></icon>
<icon :icon = "'xiala2'" v-else></icon>
</i>
{{ item.label }}
</span>
<el-collapse-transition>
<DatabaseTree v-if = "item.children && item.show" :folder = "item.children" :select = "select" :currentId = "currentId"></DatabaseTree>
</el-collapse-transition>
</li>
</ul>
</template>
<script>
import { mapGetters , mapActions} from 'vuex';
export default{
name:"DatabaseTree",
props:["folder","select","currentId"],
data(){
return{
addParams:{
label:"",
children:[]
},
noteData:{
children:[]
}
}
},
computed:{
...mapGetters(["catalog"])
},
methods:{}
}
</script>
<style lang="scss" scoped>
.dataBaseTree{
padding-left:12%;
line-height:40px;
ul{
padding-left:12%;
line-height:40px;
li{
span{
display:inline-block;
padding-left:23%;
height:100%;
width:120%;
color:#ababab;
font-size:14px;
position: relative;
cursor: pointer;
&:hover{
background: #EDF0F5;
}
.folderIcon{
color:#BCBCBC;
position: absolute;
top:-1px;
left:22px;
}
}
}
}
li{
position: relative;
span{
display:inline-block;
padding-left:40px;
font-size:14px;
height:100%;
width:120%;
cursor: pointer;
position: relative;
right:25px;
top:-2px;
color:#ababab;
&:hover{
background: #EDF0F5;
}
.titleIcon{
color:#C3C3C3;
font-size:16px;
position: absolute;
top:12px;
left:16px;
}
.folderIcon{
color:#BCBCBC;
position: absolute;
top:-1px;
left:22px;
}
}
.active{
background: #EDF0F5;
}
}
}
</style>vue版的就到這里了
下面貼一個(gè)原生js版的，感興趣的小伙伴可以繼續(xù)往下看
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
var tree=[
{
id:1,
label:"1級(jí)目錄1",
children:[
{
id:"1-1",
label:"1.1目錄"
},
{
id:"1-2",
label:"1.2目錄"
},
{
id:"1-3",
label:"1.3目錄"
},
]
},
{
id:2,
label:"1級(jí)目錄2",
},
{
id:3,
label:"1級(jí)目錄3",
children:[
{
id:"3-1",
label:"3.1目錄"
},
{
id:"3-2",
label:"3.2目錄",
children:[
{
id:"3-2-1",
label:"3.2.1目錄"
},
{
id:"3-2-2",
label:"3.2.2目錄"
},
{
id:"3-2-3",
label:"3.2.3目錄"
}
]
}
]
},
{
id:4,
label:"1級(jí)目錄4",
children:[
{
id:"4-1",
label:"4.1目錄"
},
{
id:"4-2",
label:"4.2目錄",
children:[
{
id:"4-2-1",
label:"4.2.1目錄"
}
]
}
]
},
{
id:5,
label:"1級(jí)目錄5",
children:[
{
id:"5-1",
label:"5.1目錄",
children:[
{
id:"5-1-1",
label:"5.1.1目錄"
},
{
id:"5-1-2",
label:"5.1.2目錄",
children:[
{
id:"5-1-2-1",
label:"5.1.2.1目錄"
},
]
}
]
},
{
id:"5-2",
label:"5.2目錄"
}
]
},
];
var render = function(tree) {
if (!tree) return null
var ul = document.createElement('ul');
for(var i = 0; i < tree.length;i++){
var li = document.createElement('li')
// 創(chuàng)建span標(biāo)簽
var span = document.createElement('span'); span.innerText = tree[i].label;
li.appendChild(span);
if(tree[i].children){
var sub = render(tree[i].children);
li.appendChild(sub);
}
ul.appendChild(li);
}
return ul
};
document.body.innerHTML = '';
document.body.appendChild(render(tree));
</script>
</body>
</html>感謝各位的閱讀，以上就是“如何在vue中利用遞歸組件實(shí)現(xiàn)一個(gè)樹形控件”的內(nèi)容了，經(jīng)過(guò)本文的學(xué)習(xí)后，相信大家對(duì)如何在vue中利用遞歸組件實(shí)現(xiàn)一個(gè)樹形控件這一問(wèn)題有了更深刻的體會(huì)，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云，小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章，歡迎關(guān)注！
免責(zé)聲明：本站發(fā)布的內(nèi)容（圖片、視頻和文字）以原創(chuàng)、轉(zhuǎn)載和分享為主，文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱：is@yisu.com進(jìn)行舉報(bào)，并提供相關(guān)證據(jù)，一經(jīng)查實(shí)，將立刻刪除涉嫌侵權(quán)內(nèi)容。
億速云公眾號(hào)
手機(jī)網(wǎng)站二維碼