AngularJS $scope 表单属性在 ng-submit 后未定义 [英] AngularJS $scope form attribute is undefined after ng-submit
问题描述
我从 Angular 开始，但我仍然对语法和许多不同的编码方式感到非常困惑，以获得相同的结果.
我最近的问题是，当我提交表单时，我无法通过执行 $scope.attribute_name
HTML
<div ng-include src="'menu.html'"></div><div id="container" ng-controller="MainController"><div ui-view></div>login.html(包含在路由中)
JS
var app = angular.module('myApp', ['ui.router']);app.controller('MainController',['$scope',function($scope){$scope.login = 函数($event){警报($scope.username)$event.preventDefault();}}]);总是提示未定义"我可以通过执行以下操作来获取值
$event.target.username就像在 Meteor 上一样.
有什么想法吗?
@edit1
我添加了用户作为模型的对象
HTML
JS
app.controller('MainController',['$scope',function($scope){$scope.login = 函数($event){警报($scope.user.username)}}]);我仍然得到 undefined
在控制器中定义你的 $scope 如下.因为属性是在控制器初始化时注册到控制器的 $scope 中的.
app.controller('MainController',['$scope',function($scope){$scope.user={};//如果将点赋予变量，则定义 $scope 变量.$scope.login = 函数 (){警报($scope.user.username)}}]);谢谢
I'm starting with Angular and I'm still very confused with syntax and the many different ways I can code to get the same result.
My latest problem is that when I submit a form, I can't get its values by doing $scope.attribute_name
HTML
<body ng-app="myApp">
<div ng-include src="'menu.html'"></div>
<div id="container" ng-controller="MainController">
<div ui-view></div>
</div>
</div>
login.html (included by Route)
<form name="form" name='' action="" ng-submit='login($event)'>
<input type="text" name='username' ng-model='username' required />
<input type="text" name='password' ng-model='password' required />
<button>Enviar</button>
</form>
JS
var app = angular.module('myApp', ['ui.router']);
app.controller('MainController',['$scope',function($scope){
$scope.login = function ($event){
alert($scope.username)
$event.preventDefault();
}
}]);
It always alert "undefined" I can get the values by doing the following
$event.target.username
Just like on Meteor.
Any ideas?
@edit1
I added user as the model's object
HTML
<form name="form" name='teste' action="" ng-submit='login($event)'>
<input type="text" name='username' ng-model='user.username' required />
<input type="text" name='password' ng-model='user.password' required />
<button>Enviar</button>
</form>
JS
app.controller('MainController',['$scope',function($scope){
$scope.login = function ($event){
alert($scope.user.username)
}
}]);
I still get undefined though
<form name="form" name='teste' action="" ng-submit='login()'>
<input type="text" name='username' ng-model='user.username' required />
<input type="text" name='password' ng-model='user.password' required />
<button>Enviar</button>
</form>
define your $scope inside the controller as below. Because attributes are registered to the $scope of the controller when the controller initializes.
app.controller('MainController',['$scope',function($scope){
$scope.user={}; //DEFINE $scope variable if dot is given to variable.
$scope.login = function (){
alert($scope.user.username)
}
}]);
Thanks
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