Angular指令在HTML表格中无法正常工作

rpa*_*che 4 html-table directive angularjs

我正在尝试使用AngularJS(1.2)指令在HTML表格中创建行单元格,我不明白为什么Angular将指令结果作为'body'的第一个子句插入而不是替换原始的指令元素?

这是HTML标记:

  <body ng-app="myApp" ng-controller="MainCtrl">
    <table>
      <thead>
        <tr>
          <th>col1</th>
          <th>col2</th>
          <th>col3</th>
          <th>col4</th>
        </tr>
      </thead>
      <tbody>
        <my-directive></my-directive>
      </tbody>
    </table>
  </body>
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指令:

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

app.controller('MainCtrl', function($scope) {
  $scope.data = ['value1','value2','value3','value4'];
});

app.directive('myDirective', function () {
    return {
        restrict: "E",
        replace: true,
        scope:false,
        link: function (scope, element) {
            var html = angular.element('<tr></tr>');
            angular.forEach(scope.data, function(value, index) {
                html.append('<td>'+value+'</td>');
            });
            element.replaceWith(html);
        }            
    };
});
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请使用下面的Plunker链接查看结果:http://plnkr.co/edit/zc00RIUHWNYW36lY5rgv?p = preview

Edm*_*son 5

如果你不将指令限制为一个元素,它似乎工作得更好:

app.directive('myDirective', function () {
    return {
        restrict: "A",
        replace: true,
        scope:false,
        link: function (scope, element) {
            var html = angular.element('<tr></tr>');
            angular.forEach(scope.data, function(value, index) {
                html.append('<td>'+value+'</td>');
            });
            element.replaceWith(html);
        }            
    };
});

<table>
  <thead>
    <tr>
      <th>col1</th>
      <th>col2</th>
      <th>col3</th>
      <th>col4</th>
    </tr>
  </thead>
  <tbody>
    <tr my-directive></tr>
  </tbody>
</table>
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