表单验证(一)

2016-06-07  本文已影响0人  遥望泰山
  1. $dirty 表单有填写记录
  2. $valid 字段内容合法的
  3. $invalid 字段内容是非法的
  4. $pristine 表单没有填写记录
<html>
<head>
    <meta charset="UTF-8">
    <title>Angular JS Forms</title>
    <script src="angular/angular.min.js"></script>

</head>
<body>
<h2>验证实例</h2>

<form ng-app="myApp" ng-controller="validateCtrl" name="myForm" novalidate>
    <p>用户名<br>
    <input type="text" name="user" ng-model="user" required/>
    <span  style="color:red"  ng-show="myForm.user.$dirty&&myForm.user.$invalid">
    <span ng-show="myForm.user.$error.required">用户名是必须的</span>
</span>
    </p>
    <p>邮箱<br>
        <input type="email" name="email" ng-model="email" required/>
        <span ng-show="myForm.email.$dirty&&myForm.email.$invalid">
            <span ng-show="myForm.email.$error.email">非法的邮箱地址.</span>
            <span ng-show="myForm.email.$error.required">邮箱是必须的.</span>
        </span>
    </p>
    <p>
        <input type="submit" ng-disabled="myForm.user.$error.required||myForm.email.$error.required|| (myForm.user.$dirty&&myForm.user.$invalid)||(myForm.email.$dirty&&myForm.email.$invalid)"/>
    </p>
</form>
<script>
    var app = angular.module('myApp', []);
    app.controller('validateCtrl', function($scope) {
        $scope.user = '';
        $scope.email = 'john.doe@gmail.com';
    });
</script>
</body>
</html>
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