Angular ng-repeat没有显示任何内容

时间:2016-08-24 09:10:39

标签: angularjs angularjs-ng-repeat

我正在尝试使用ng-repeat显示列表。直接在html中使用时,它可以正常工作。但是,当我尝试使用指令插入相同的代码时,ng-repeat不执行任何操作,甚至不会显示一个项目。

我尝试了什么:

  • 我在.html和.js文件中使用相同的html - 在html中没有问题,在指令号
  • 我添加<h1>Say Something</h1>只是为了检查指令是否正确应用 - 是的,它是
  • 我尝试直接在指令中声明数组(值应该通过范围传递) - 行为没有变化
  • alert(Appraisals[0].id)会显示包含正确信息的弹出窗口
  • 检查拼写和拼写错误,但一切似乎都正确......

.js文件:

var app = angular.module('AngularDirectiveDemo', []);
(function () {
    var app = angular.module('AngularDirectiveDemo');
    app.directive('scSchedule', function () {
        //alert($scope.Appraisals[0]);
        var Appraisals = [
            { id: 2432, name: "Greatness" },
            { id: 2486, name: "Mediocrity" }
        ];
        alert(Appraisals[0].id);
        return {
            restrict: 'E',
            replace: 'true',
            template: '<div>'+
                 '<h1>Say Something Directive</h1><ul> <li ng-repeat="x in Appraisals">' +
                 '{{x.id}}<a href="#" ng-click="viewAppraisalDetails(x)">Details</a></li></ul><div>blanko</div></div>',
            controller: function ($scope) {
                $scope.viewAppraisalDetails = function (appraisalToView) {

                    console.log('viewing details for ' + appraisalToView.Id);

            }
        }

        };
    });

    angular.module('AngularDirectiveDemo').controller('scheduleCtrl',function($scope){
        $scope.Appraisals=[
            {id: 2432, name:"Greatness"},
            {id:2486, name:"Mediocrity"}
        ];
    });

}());

html文件:

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml" ng-app="AngularDirectiveDemo">
<head>
    <meta charset="utf-8" />
    <script type="text/javascript" src="../Scripts/jquery-1.9.1.min.js"></script>
    <SharePoint:ScriptLink name="sp.js" runat="server" OnDemand="true" LoadAfterUI="true" Localizable="false" />
    <script src="../Scripts/angular.js"></script>
   <!-- <script type="text/javascript" src="../Scripts/App.js"></script> -->
    <script src="../Codes/SampleDirective.js"></script>

    <title>Angular Directive Demo</title>
</head>
<body>
    <div ng-controller="scheduleCtrl">
        <h1>Hello world</h1>
        <ul>
            <li ng-repeat="x in Appraisals">{{x.id}}   {{x.name}}</li>
        </ul>

    </div>
    <sc-Schedule></sc-Schedule>
</body>
</html>

结果:
enter image description here

1 个答案:

答案 0 :(得分:3)

您创建了本地变量Appraisals,因此视图无法看到它。它需要在一个范围内:

alert(Appraisals[0].id);
return {
    restrict: 'E',
    replace: 'true',
    scope: {
       Appraisals: '='
    }
    link: function(scope, element, attrs, tabsCtrl) {
      scope.Appraisals = Appraisals;
    },
    template: '<div>'+