AngularJS手動表單驗證

AngularJS手動表單驗證_AngularJS

最後更新：2017-01-19 來源：互聯網

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所謂手動驗證是通過AngularJS表單的屬性來驗證，而成為AngularJS表單必須滿足兩個條件：

1、給form元素加上novalidate="novalidate"；

2、給form元素加上name="theForm"，

如下：

<!DOCTYPE html><html lang="en" ng-app="myApp1"><head> <meta charset="UTF-8"> <title></title> <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css"/> <link rel="stylesheet" href="../css/main.css"/></head><body><nav class="navbar navbar-inverse navbar-fixed-top"> <div class="container"> <div class="navbar-header">  <a href="/" class="navbar-brand">Form Submitting</a> </div> </div></nav><div class="container main-content" ng-controller="myCtrl1"> <!--novalidate讓表單不要使用html驗證--> <!--theForm變成scope的一個欄位--> <form ng-submit="onSubmit(theForm.$valid)" novalidate="novalidate" name="theForm"> <div class="form-group">  <label for="name">Name</label>  <input type="text" class="form-control" id="name" ng-model="formModel.name"/> </div> <div class="form-group" ng-class="{  'has-error': !theForm.email.$valid && (!theForm.$pristine || theForm.$submitted),  'has-success': theForm.email.$valid && (!theForm.$pristine || theForm.$submitted)  }">  <label for="email">Email</label>  <input type="email" class="form-control" id="email" ng-model="formModel.email" required="required" name="email"/>  <p class="help-block" ng-show="theForm.email.$error.required && (!theForm.$pristine || theForm.$submitted)">必填</p>  <p class="help-block" ng-show="theForm.email.$error.email && (!theForm.$pristine || theForm.$submitted)">email格式不正確</p> </div> <div class="form-group">  <label for="username">Username</label>  <input type="text" class="form-control" id="username" ng-model="formModel.username"/> </div> <div class="form-group">  <label for="age">Age</label>  <input type="number" class="form-control" id="age" ng-model="formModel.age"/> </div> <div class="form-group">  <label for="sex">Sex</label>  <select name="sex" id="sex" class="form-control" ng-model="formModel.sex">  <option value="">Please choose</option>  <option value="male">Mail</option>  <option value="femail">Femail</option>  </select> </div> <div class="form-group">  <label for="password">Password</label>  <input type="text" class="form-control" id="password" ng-model="formModel.password"/> </div> <div class="form-group">  <button class="btn btn-primary" type="submit">Register</button> </div>  <pre>  {{theForm | json}}  </pre> </form></div><script src="../node_modules/angular/angular.min.js"></script><script src="second.js"></script></body></html>

● 給form加上novalidate="novalidate"意味著表單將不再使用HTML5驗證特性
● 給form加上name="theForm"意味著表單的名稱是theForm。如何使用theForm,比如我們驗證表單是否被修改過theForm.$submitted
● 通過ng-submit提交表單
● formModel是$scope中的一個屬性
● 對錶單的Email進行了手動驗證，使用了AngularJS表單的眾多屬性，比如theForm.email.$valid，theForm.$pristine，theForm.$submitted， theForm.email.$error.required，theForm.email.$error.email
● 通過<pre>{{theForm | json}}</pre>把AngularJS表單的所有屬性都列印出來

{ "$error": { "required": [  {  "$validators": {},  "$asyncValidators": {},  "$parsers": [],  "$formatters": [   null  ],  "$viewChangeListeners": [],  "$untouched": true,  "$touched": false,  "$pristine": true,  "$dirty": false,  "$valid": false,  "$invalid": true,  "$error": {   "required": true  },  "$name": "email",  "$options": null  } ] }, "$name": "theForm", "$dirty": false, "$pristine": true, "$valid": false, "$invalid": true, "$submitted": false, "email": { "$validators": {}, "$asyncValidators": {}, "$parsers": [], "$formatters": [  null ], "$viewChangeListeners": [], "$untouched": true, "$touched": false, "$pristine": true, "$dirty": false, "$valid": false, "$invalid": true, "$error": {  "required": true }, "$name": "email", "$options": null }, "sex": { "$validators": {}, "$asyncValidators": {}, "$parsers": [], "$formatters": [], "$viewChangeListeners": [], "$untouched": true, "$touched": false, "$pristine": true, "$dirty": false, "$valid": true, "$invalid": false, "$error": {}, "$name": "sex", "$options": null }}

以上，凡是有name屬性的input都被顯示在上面。

在second.js檔案中定義了module,controller以及提交表單的方法。

var myApp1 = angular.module('myApp1',[]);myApp1.controller('myCtrl1', function($scope, $http){ $scope.formModel = {}; $scope.onSubmit = function(){  $http.post('someurl',$scope.formModel)   .success(function(data){    console.log(':)');   })   .error(function(data){    console.log(':(');   });  console.log($scope.formModel); };});

以上的表單驗證方式好處是可控性強，但相對繁瑣。

以上就是本文的全部內容，希望對AngularJS手動表單驗證能夠熟練操作。

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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