knockoutjs模板实现树形结构列表

来源：懂视网责编：小采时间：2020-11-27 22:33:35

knockoutjs模板实现树形结构列表

knockoutjs模板实现树形结构列表:数据结构 /*数据*/ 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, nu

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导读knockoutjs模板实现树形结构列表:数据结构 /*数据*/ 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, nu

数据结构

/*数据*/
 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: []
 }
 ]
 }
 ]
 }
 ]
 }
 ];

效果图

之前已经写过用Vue实现图上效果的方法，此篇为用knockout.js实现上图效果的方法，同样通过模板将数据绑定到页面。

模板代码

<script type="text/html" id="ko-temp">
 <div class="tem">
 <div class="tem-p" >
 <div data-bind="event:{click:$root.toggleClick}"><i data-bind="style:{'visibility':number!=0?'visible':'hidden'},text:number"></i><span data-bind="text:name"></span></div>
 <!--绑定数据-->
 <div><span data-bind="text:energyone"></span></div>
 <div><span data-bind="text:energytwo"></span></div>
 <div><span data-bind="text:energythree"></span></div>
 <!--绑定class，使数值显示出区分-->
 <div><span data-bind="css:{isgreen:huanRatio<0,isred:huanRatio>100},text:huanRatio+'%'"></span></div>
 <div><span data-bind="css:{isgreen:tongRatio<0,isred:tongRatio>100},text:tongRatio+'%'"></span></div>
 </div>
 <!--ko if:isFolder-->
 <div class="tem-c" data-bind="template:{name:'ko-temp',foreach: child}" ></div>
 <!--/ko-->
 </div>
</script>

请对比之前一篇Vue的方法，了解两种方式模板绑定方式的不同。

模板写完，在页面上使用模板。

html代码

<div class="component-div" data-bind="template:{name:'ko-temp',foreach: ko_vue_data()}"></div>

JavaScript代码

/*数据*/
 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: []
 }
 ]
 }
 ]
 }
 ]
 }
 ];
 function addAttribute(dst){
 for(var i=0;i<dst.length;i++){
 var temp=dst[i];
 temp.isFolder=ko.observable(true);//默认展开
 for(var j=0;j<temp.child.length;j++){
 addAttribute(temp.child);
 }
 }
 }
 addAttribute(ko_vue_data);
 /*视图模型*/
 function viewModel() {
 var self=this;
 self.ko_vue_data=ko.observableArray(ko_vue_data);
 self.toggleClick=function (event) {//展开折叠效果
 window.event? window.event.cancelBubble = true : event.stopPropagation();
 var isFolder=event.isFolder();
 if(isFolder){
 event.isFolder(false);
 }else {
 event.isFolder(true);
 }
 }
 }
 ko.applyBindings(new viewModel());

css样式同之前一篇Vue的一致，在这里就不在赘述，如有需要可查看之前一篇。到此两种方式算是全部写完，在报表多的页面，对于以上代码，稍加修改即可复用，绑定数据非常方便。

总结

以上所述是小编给大家介绍的knockoutjs模板实现树形结构列表，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！

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