您的位置：首页 > Web前端 > AngularJS

AngularJS表单验证开发案例

2016-06-26 08:50 483 查看

angular支持IE8+浏览器，虽然性能很好，但是目前只适用于手机端项目

知识点：
域$scope
AngularJS基础指令
指令实现不同的功能
学习思路和方法

<link rel="stylesheet" href="lib/css/bootstrap.min.css"/>
<body ng-app="myApp" ng-controller="MainController">

angular.module('myApp', [])
.controller('MainController', function ($scope) {
$scope.submitForm = function () {
console.log('表单提交了');
};
});

/***********************************/
<input class="form-control" type="text" ng-model="name" ng-minlength="4" ng-maxlength="10"/>
<div class="red">{{name}}</div>
<div>{{name}}</div>
<div>{{name}}</div>
<div>{{name}}</div>
<div>{{name}}</div>
<div>{{name}}</div>
<div>{{name}}</div>
/*******************************/

<form name="signUpForm" ng-submit="submitForm()">
<div class="form-group">
<label>用户名：</label>
<input type="text"
name="username"
ng-model="username"
ng-class="{'error': signUpForm.username.$invalid}"
required
ng-minlength="4"
class="form-control"
/>
<div>{{username}}</div>
<div ng-if="signUpForm.username.$invalid &&
signUpForm.username.$touched">您输入的有误差</div>
<div ng-if="signUpForm.username.$valid" class="correct">
恭喜输入正确
</div>
</div>
</form>

/******************************/

<form name="signUpForm" ng-submit="submitForm()">
<div class="form-group">
<label>用户名：</label>
<input type="text"
name="username"
ng-model="username"
ng-class="{'error': signUpForm.username.$invalid}"
required
ng-minlength="4"
class="form-control"
/>
<input type="text"
name="username2"
ng-model="username2"
class="form-control"
ng-disabled="signUpForm.username.$valid"
/>
<button class="btn btn-primary" ng-disabled="signUpForm.$invalid">提交</button>
</div>
</form>

/**********************************/

<style>
.wrapper {
width: 200px;
margin: 30px auto;
}
</style>
</head>
<body ng-app="myApp" ng-controller="MainController">

<div class="wrapper">
<h2>注册</h2>
<form>
<div class="form-group">
<label>用户名：</label>
<input type="text" name="username" class="form-control"/>
</div>
<div class="form-group">
<label>密码：</label>
<input type="password" name="password" class="form-control"/>
</div>
<div class="form-group">
<label>确认密码：</label>
<input type="password" name="password2" class="form-control"/>
</div>
</form>
</div>

/****************************/

<link rel="stylesheet" href="font-awesome-4.5.0/css/font-awesome.min.css"/>
<link rel="stylesheet" href="lib/css/bootstrap.min.css"/>
<style>
.wrapper {
width: 200px;
margin: 30px auto;
}
p.error {
color: red;
/* display: none;*/
}
pre {
white-space: normal;
}
p.input-result {
position: relative;
top: -26px;
left: 179px;
}
p.success {
color: #3C763D;
}
</style>
</head>
<body ng-app="myApp" ng-controller="MainController">
<!-- name="signUpForm" 注册表单 -->
<div class="wrapper">
<h2>注册</h2>
<form name="signUpForm" ng-submit="submitForm()">
<div class="form-group" ng-class="{'has-success': signUpForm.username.$valid}">
<label>用户名：</label>
<pre>合法：{{signUpForm.username.$valid}}</pre>
<pre>{{signUpForm.username}}</pre>
<input type="text"
name="username"
class="form-control"
ng-model="userdata.username"
required
ng-minlength="4"
ng-maxlength="32"
/>
<p class="error" ng-if="signUpForm.username.$error.required
&& signUpForm.username.$touched">
用户名不可为空
</p>
<p class="error" ng-if="(signUpForm.username.$error.minlength
|| signUpForm.username.$error.maxlength) && signUpForm.username.$touched">
用户名长度应在4~32位之间
</p>
<p class="fa fa-check input-result success"
ng-if="signUpForm.username.$valid"></p>
</div>
<div class="form-group" ng-class="{'has-success': signUpForm.password.$valid}">
<label>密码：</label>
<input type="password"
name="password"
class="form-control"
ng-model="userdata.password"
required
ng-minlength="6"
ng-maxlength="18"
/>
<p class="error" ng-if="signUpForm.password.$error.required
&& signUpForm.password.$touched">
密码不得为空
</p>
<p class="error" ng-if="(signUpForm.password.$error.minlength
|| signUpForm.password.$error.maxlength)
&& signUpForm.password.$touched">
密码应该在6~18位之间
</p>
<p class="fa fa-check input-result success"
ng-if="signUpForm.password.$valid"></p>
</div>
<div class="form-group" ng-class="{'has-success': signUpForm.password2.$valid}">
<label>确认密码：</label>
<input type="password"
name="password2"
class="form-control"
ng-model="userdata.password2"
required
compare="signUpForm.password"
/>
<p class="error"></p>
</div>
<div class="form-group">
<button class="btn btn-primary">注册</button>
</div>
</form>
</div>

<script src="lib/js/angular.min.js"></script>
<script src="js/main.js"></script>

angular.module('myApp', [])
.controller('MainController', function ($scope) {

$scope.userdata = {};

$scope.submitForm = function () {
console.log('表单提交了');
// $scope.userdata是表单提交的内容
console.log($scope.userdata);
// Object {username: "aaa", password: "123456", password2: "456789"}

if($scope.signUpForm.$invalid) {
alert('请检查你输入的内容');
} else {
alert('提交成功！');
}
};
})

// 创建指令
.directive('compare', function () {
var o = {};
return o;
});

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航