Question

我试图压扁嵌套的json对象＆amp;将它显示在表格中。

所以我尝试使用多个ng-repeat-start＆amp; div中的ng-repeat-end元素。但不知何故，数据没有显示出来。

普兰克： http://plnkr.co/edit/apuf9YUYnkoSaCDaNYrC?p=preview

HTML：

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.2.x" src="https://code.angularjs.org/1.2.22/angular.js" data-semver="1.2.22"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">

    Data is  : 
    {{mydata}}

    <table cellspacing="1" border="1">
      <thead>
        <tr> 
        <td> MainTitle</td>
        <td> SubTitle</td>
        <td> LastTitle</td>
        <td> Final</td>
        </tr>

      </thead>
      <tbody>
      <div ng-repeat-start="main in mydata" ng-if="false"></div>    
      <div ng-repeat-start="sub in main.items" ng-if="false"></div>    
      <div ng-repeat-start="last in sub.l2items" ng-if="false"></div>


      <tr ng-repeat="final in last.l3items">
        <td> {{main.title}} </td>
        <td> {{sub.title}} </td>
        <td> {{last.title}} </td>
        <td> {{final}} </td>

      </tr>
      </tbody>
      <div ng-repeat-end ng-if="false"></div>    
      <div ng-repeat-end ng-if="false"></div>    
      <div ng-repeat-end ng-if="false"></div>

    </table>
  </body>

</html>

代码：

var app = angular.module('plunker', []);

app.controller('MainCtrl', function($scope) {
  $scope.name = 'World';



    $scope.mydata = [
      {
        title :"hello",
        items : [
          {
          title: "level 1 title",
          l2items : [
            {
            title : "level 2 title",
            l3items: [ "a","b" ]

           }
            ]
        }
        ,
         {
          title: "level 1 title 1 ",
          l2items : [
            {
            title : "level 2 title 1",
            l3items: [ "a 1","b 1" ]
           }
            ]
        }
      ]
      },{
      title :"hello 0",
        items : [
          {
          title: "level 1 title 0",
          l2items : [
            {
            title : "level 2 title 0",
            l3items: [ "a 0","b 0" ]

           }
            ]
        }
        ,
         {
          title: "level 1 title 1 0",
          l2items : [
            {
            title : "level 2 title 1 0",
            l3items: [ "a 1 0","b 1 0" ]
           }
            ]
        }
      ],
      }]
});

预期输出（道歉无法创建合适的表格）

主标题|副标题| LastTitle |最终

你好| 1级标题| 2级标题| a

你好| 1级标题| 2级标题| b

你好| 1级标题1 | 2级标题1 | a 1

你好| 1级标题1 | 2级标题1 | b 1

你好0 | 1级标题0 | 2级标题0 | a 0

你好0 | 1级标题0 | 2级标题0 | b 0

你好0 | 1级标题1 0 | 2级标题1 0 | a 1 0

你好0 | 1级标题1 0 | 2级标题1 0 b 1 0

Answer 1

我认为问题出在您的HTML上。很可能在你的桌子里有div。如果您将其转换为<div> s，那么它可以正常工作。我看到的另一个问题是您正在重复关闭</body>代码。

我理解你为什么要使用<div>和ng-if来做这件事。曾经有ng-repeat的评论指令版本，或至少是创建一个的评论指令版本，但我认为它们遇到了browser limitations。

这是similar issue。也许你会喜欢他们的解决方案。

否则，请将<div>替换为<tr> s：

  <tr ng-repeat-start="main in mydata" ng-if="false"></tr>
  <tr ng-repeat-start="sub in main.items" ng-if="false"></tr>
  <tr ng-repeat-start="last in sub.l2items" ng-if="false"></tr>

  <tr ng-repeat="final in last.l3items">
    <td> {{main.title}} </td>
    <td> {{sub.title}} </td>
    <td> {{last.title}} </td>
    <td> {{final}} </td>

  </tr>

  <tr ng-repeat-end ng-if="false"></tr>
  <tr ng-repeat-end ng-if="false"></tr>
  <tr ng-repeat-end ng-if="false"></tr>

http://plnkr.co/edit/jPtHDbaonUtc9tXQadc2?p=preview

多个嵌套的ng-repeat-start无法显示数据

1 个答案: