Vue组件模板形式实现对象数组数据循环为树形结构(实例代码)
数据结构为数组中包含对象--树形结构，用Vue组件的写法实现以下的效果：
树形列表，缩进显示层级，第5级数据加底色，数据样式显色，点击展开折叠数据。本文为用Vue实现方式，另有一篇为用knockout.js的实现方法。
html代码
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<div id="table-component-div"> <table-component v-for="item in data1" v-bind:list="item"></table-component></div> |
组件模板代码
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<script type="text/x-template" id="table-component-template"> <div class="tem"> <div class="tem-p"> <div v-on:click="toggleClick"><i v-bind:style="{'visibility':list.number!=0?'visible':'hidden'}">{{list.number}}</i><span>{{list.name}}</span></div> <!--绑定数据--> <div><span>{{list.energyone}}</span></div> <div><span>{{list.energytwo}}</span></div> <div><span>{{list.energythree}}</span></div> <!--绑定class，使数值显示出区分--> <div><span v-bind:class="{'isgreen':list.huanRatio<0,'isred':list.huanRatio>100}">{{list.huanRatio}}<em>%</em></span></div> <div><span v-bind:class="{'isgreen':list.tongRatio<0,'isred':list.tongRatio>100}">{{list.tongRatio}}<em>%</em></span></div> </div> <div class="tem-c"> <!-- 子组件 --> <table-component v-for="itemc in list.child" :list="itemc"></table-component> </div> </div></script> |
JavaScript代码
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/* 数据结构 */ var ko_vue_data=[ { name: "总能耗", number:"0", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [ { name: "租户电耗", number:"1", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [] }, { name: "公共用电", number:"2", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [ { name: "暖通空调", number:"2.1", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [ { name: "冷站", number:"2.1.1", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [ { name: "冷水机组", number:"2.1.1.1", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [] } ] }, { name: "热力站", number: "2.1.2", energyone: 14410, energytwo: 1230, energythree: 1230, huanRatio: -36.8, tongRatio: 148.5, child: [] } ] } ] } ] } ]; /* 注册组件 */ Vue.component('table-component', { template:"#table-component-template",//模板 props:['list'],//传递数据 computed:{//计算属性 isFolder: function () {//判断数据有没有子集，此效果中暂没用到，有需要的可以看下具体使用方式 return this.list.child && this.list.child.length > 0; } }, methods:{ /* 展开折叠操作 */ toggleClick:function(event){ event.stopPropagation();//阻止冒泡 var _this = $(event.currentTarget);//点击的对象 if (_this.parent().next().is(":visible")) { _this.parent().next().slideUp(); } else { _this.parent().next().slideDown(); } } } }); /* 创建实例 */ new Vue({ el:"#table-component-div",//挂载dom data:{ data1:ko_vue_data//数据 } }) |
数据显示完毕，接下来是样式效果，缩进显示层级及底色显示。
css代码
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.tem-p{ clear: both; border-bottom: 1px solid #dddddd; height: 30px; line-height: 30px; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } .tem-p>div{ float: left; width:100px; box-sizing: border-box; -ms-text-overflow: ellipsis; text-overflow: ellipsis; white-space:nowrap; overflow: hidden; text-align: center; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; height: 100%; border-right: 1px solid #dddddd; } .tem-p>div:first-of-type{ width: 298px; text-align: left; } .tem>.tem-c .tem-p>div:first-of-type{ padding-left: 30px; } .tem>.tem-c .tem-c .tem-p>div:first-of-type{ padding-left: 60px; } .tem>.tem-c .tem-c .tem-c .tem-p>div:first-of-type{ padding-left: 90px; } .tem>.tem-c .tem-c .tem-c .tem-c .tem-p>div:first-of-type{ padding-left: 120px; } .tem>.tem-c .tem-c .tem-c .tem-c .tem-p{ background-color: #f8f8f8; } .tem>.tem-c .tem-c .tem-c .tem-c .tem-c .tem-p>div:first-of-type{ padding-left: 150px; } .lastChild{ background: #f8f8f8; } .isred{ color: red; } .isgreen{ color: green; } |
