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使用Factory方法创建服务时未定义AngularJS模块

热度:63   发布时间:2023-06-07 15:27:42.0

我正在MVC中学习AngularJS,并创建了将模型传递给Angular Controller的服务。 但这给我错误

JavaScript运行时错误:“ accountModule”未定义

这就是我在做什么:

AccountController.cs

public ViewResult Index()
{
    var accounts = new List<Accounts>
                        {
                            new Accounts
                                {
                                    Id = 111,
                                    Designation = "Tech Lead",
                                    Name = "AAA"
                                },
                            new Accounts
                                {
                                    Id = 222,
                                    Designation = "Softwre Engineer",
                                    Name = "BBB"
                                },
                            new Accounts
                                {
                                    Id = 111,
                                    Designation = "Project Manager",
                                    Name = "CCC"
                                }
                        };

    var settings = new JsonSerializerSettings
                        {
                            ContractResolver = new CamelCasePropertyNamesContractResolver()
                        };

    var accountJson = JsonConvert.SerializeObject(accounts, Formatting.None, settings);

    return this.View("Index", (object)accountJson);
}

Index.cshtml

<script type="text/javascript" src="../../Scripts/Modules/Account/Account.js"></script>
<div ng-app="accountModule">
    <div ng-controller="accountController">
        <h1>{{message}}</h1>
        <div class="container" ng-init="employees in {{employees}}">
            <h2>Employee Details</h2>
            <div class="row">
                <table class="table table-condensed table-hover">
                    <tr>
                        <td>
                            ID
                        </td>
                        <td>
                            Name
                        </td>
                        <td>
                            Designation
                        </td>
                    </tr>
                    <tr ng-repeat="emp in employees">
                        <td>
                            {{emp.id}}
                        </td>
                        <td>
                            {{emp.name}}
                        </td>
                        <td>
                            {{emp.designation}}
                        </td>
                    </tr>
                </table>
            </div>
        </div>
        <div>
            @*{{emps}}*@
        </div>
    </div>
</div>

<script type="text/javascript">

    accountModule.factory('accountService', function() {
            var factory = {};

            factory.employees = @Html.Raw(Model);

            return factory;
        });

</script>

Account.js

var account = angular.module('accountModule',[]);

account.controller('accountController', [
    '$scope', 'accountService', function ($scope, accountService) {


        $scope.employees = accountService.employees;

        $scope.message = "Hi on " + (new Date()).toDateString();
    }
]);

我不明白我要去哪里错了。

您需要将内联脚本移到account.js之后。

另外变量应该是account而不是accountModule

<script src="angular.js"></script>
<script src="app.js"></script>
<script src="account.js"></script>
<script type="text/javascript">
//account.factory('accountService', function() { //this is alternative use below one
angular.module('accountModule').factory('accountService', function() {
    var factory = {};

    factory.employees = @Html.Raw(Model);

    return factory;
});
</script>

MVC View渲染顺序-1.首先从View开始,然后从相关的包(外部CSS,JS)开始。

2.为了传递模型数据,我们需要在.cshtml文件中有一个内联元素(尽管不建议这样做),但是,如果这样做,可以使用服务注入到相关的控制器-

@section scripts
    {
    <script>
    (function (undefined) {
        window.app.factory('searchBinding', function () {
            return @Html.Raw(Json.Encode(Model))
        })
    })(undefined);

</script>
}
  1. 现在,由于上面的代码是内联的,因此可以使用View本身执行它,但是Angular模块尚未定义为尚未下载。 因此,它将引发未定义的错误。

  2. 为了解决这个问题,我们可以在所有核心文件(捆绑包)加载后在_Layout.cshtml中使用RenderSection ,这甚至迫使内联节也仅在这些文件加载??后才加载(在步骤2中。@section脚本用于)。_Layout.cshtml文件中的代码段

    @ Scripts.Render( “?/捆绑/ angularjs”); @RenderSection( “脚本”,假);

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