Question

我在angularjs中有一个表单

<form ng-submit="addNewNote(noteData)">
        <button type="submit"  class="md-icon-button ion-nav-button-right md-button md-default-theme" aria-label="Setting" tabindex="0">
            {{noteTxt}}
        </button> 
 <ion-content>
<div id="note-detail-content">
                <md-input-container md-no-float>
                    <input required name="noteTitle" placeholder="Note Title (Required)" ng-model="noteData.title">
                </md-input-container>
                <textarea rows="7" ng-model="noteData.description" maxlength="250"
                          placeholder="Write something here ...."></textarea>
                <span>
                </span>
            </div><!--end content section-->
        </ion-content>
    <!--end note detail section-->
      </form>

问题是ng-submit被触发两次，即使存在值，noteData.title也不会读取任何值。我收到此错误

Cannot read property 'title' of undefined

I've checked this question但我的代码不包括两次角度，如果是，我该如何检查？

$scope.addNewNote=function(noteData){
    alert(noteData.title);
}

index.html链接

    <!-- Ionic javascript lib -->
    <script src="lib/ionic/js/ionic.bundle.js"></script>
    <!-- end Ionic javascript lib -->

    <!-- Angular javascript lib -->
    <script src="lib/angular-messages.js"></script>
    <script src="lib/angular-aria.js"></script>
    <script src="lib/angular-material.js"></script>
    <!-- end Angular javascript lib -->

    <!-- Cordova script (this will be a 404 during development) -->
    <script src="lib/ng-cordova.js"></script>
    <script src="cordova.js"></script>

更新 app.js文件

.state('app.addnote', {
                url: "/addnote",
                cache: false,
                views: {
                    'menuContent': {
                        templateUrl: "templates/note/html/note-add.html",
                        controller: 'AddNotesCtrl'
                    }
                }
            })
            .state('app.notelist', {
                url: "/notelist",
                params:{
                    isAnimated:true
                },
                cache: false,
                views: {
                    'menuContent': {
                        templateUrl: "templates/application-storage/local-application-db/html/note-list.html",
                        controller: 'noteListCtrl'
                    }
                }
            }

）

Controller.js

  var appControllers = angular.module('starter.controllers', []); // Use for all controller of application.
    var appServices = angular.module('starter.services', []);// Use for all service of application.

appControllers.controller('AddNotesCtrl',function($scope,$rootScope,$state,$mdToast){


}

Answer 1

我不知道为什么它会两次触发/提交（你确定没有双重功能声明或者在html和路由中声明控制器两次等等吗？）。它不会对我这样做，但对于第二个问题，它不提交数据。您是否在控制器中的任何位置声明了变量noteData？如果你在控制器中设置它，然后像这样捕获提交函数，那么它将显示数据：

$scope.noteData = [];

$scope.addNewNote = function(noteData) {
  console.log('form submitted');
  console.log(noteData);
};

修改

请在SO上查看this post，了解表单提交两次的问题。您的问题不会与您在问题中提供的代码重复，因此您必须在某处导致此问题。

Angular.js ng-submit被触发两次并且没有从表单中获取值

1 个答案: