我正在开发一个添加/编辑/删除联系人的应用程序。 以下是我添加联系人视图模板的方式:
<input placeholder="name" ng-model="contact.name" type="text">
<input placeholder="number" ng-model="contact.number" type="text">
<a href="#/"><button>Add</button></a>
这是我的控制器文件,用于添加的控制器是最后一个:
var myApp = angular.module('myApp', ['ngRoute']).config(function ($routeProvider) {
$routeProvider.when('/contact/:index', {
templateUrl: 'partials/edit.html',
controller: 'Edit'
}).when('/', {
templateUrl: 'partials/contacts.html'
}).when('/add', {
templateUrl: 'partials/add.html',
controller: 'Add'
})
.otherwise({ redirectTo: '/' });
}).controller('Contacts', ['$scope',function($scope){
$scope.contacts = [
{name:'Hazem', number:'01091703638'},
{name:'Taha', number:'01095036355'},
{name:'Adora', number:'01009852281'},
{name:'Esmail', number:'0109846328'}
];
}]).controller('Edit', ['$scope','$routeParams',function($scope,$routeParams){
$scope.contact = $scope.contacts[$routeParams.index];
$scope.index = $routeParams.index;
}]).controller('Add', ['$scope', function($scope){
$scope.contacts.push({name: contact.name, number: contact.number});
}]);
我在chrome检查员中遇到错误说: ReferenceError:未定义contactname
答案 0 :(得分:7)
请参阅下文
使用<button ng-click="Add()">Add</button>
标记的<a>
个实例
var myApp = angular.module('myApp', [])
.controller('Add', ['$scope', function($scope){
$scope.contacts = [];
$scope.Add = function() {
$scope.contacts.push({name: $scope.contactname, number: $scope.contactnumber});
}
}]);
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
<div ng-controller="Add">
<input placeholder="name" ng-model="contactname" type="text">
<input placeholder="number" ng-model="contactnumber" type="text">
<button ng-click="Add()">Add</button>
<ul>
<li ng-repeat="con in contacts">{{con.name}} {{con.number}}</li>
</ul>
</div>
</div>
&#13;
.controller('Add', ['$scope', function($scope){
$scope.contacts.push({name: contactname, number: contactnumber});
}]);
.controller('Add', ['$scope', function($scope){
$scope.contacts.push({name: $scope.contactname, number: $scope.contactnumber});
}]);
答案 1 :(得分:6)
controller('Add', function(){
this.contacts.push({name: contactname, number: contactnumber});
}]);
每个控制器都有自己的范围,在Add控制器中,您只是试图将未定义的内容推送到也未定义的变量$scope.contacts
。
另外在您的视图中,当您将某些内容传递给ng-model时,这基本上是在控制器中具有该名称的变量之间创建双向数据绑定。因此,在这种情况下,您的html将创建两个变量:$scope.contactname
和$scope.contactnumber
。
在您的视图中,您还调用了一个尚未在控制器上定义的函数Add()。
以下是您的控制器的外观:
controller('Add', function(){
var vm = this;
vm.contacts = []; //you declare your array of contacts in the controllers scope
//vm.contacts = getContactsFromDB(); //typically you'd be getting your initial list from a DB
//As good practice, you should initialize the objects in your scope:
vm.contactname = '';
vm.contactnumber = '';
vm.Add = function() {
vm.contacts.push({name: vm.contactname, number: vm.contactnumber});
//Also you could add the data to a database
/*
ContactService
.AddNewContact(vm.contactname, vm.contactnumber)
.then(function(){
vm.contacts.push(
{name: vm.contactname, number: vm.contactnumber});
});
*/
//Finally you should reset the form variables
vm.contactname = '';
vm.contactnumber = '';
}
}]);