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>
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); } }; });
请使用下面的Plunker链接查看结果:
http://plnkr.co/edit/zc00RIUHWNYW36lY5rgv?p=preview
解决方法
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",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>