AngularJS学习之输入验证
1.AngularJS可以验证表单和控件可以验证输入的数据;
2.输入验证:客户端不能确保用户输入数据的安全,所以服务器端的数据验证也是必须的;
3.应用实例:
<! DOCTYPE html>
<html>
<script src=http://apps.bding.com/libs/angular.js/1.4.6/angular.min.js></script>
<body>
<h2>Validation Example</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> //ng-model指令用于绑定输入元素到模型中
<span style="color:red" ng-show="myForm.user.$dirty && myForm.user.$invalid">
<span ng-show="myForm.user.$error.required">用户名是必须的</span></span>
</p>
<p>邮箱:<br>
<input type="email" name="email" ng-model="email" required> //模型有两个属性:user和email
<span style="color:red" ng-show="myForm.email.$dirty && myForm.email.$invalid">
<span ng-show="myForm.email.$error.required">邮箱是必须的。</span>
<span ng-show="myForm.email.$error.email">非法的邮箱</span>
</span>
</p>
<p>
<input type="submit"
ng-disabled="myForm.user.$dirty && myForm.uer.$invalid || myForm.email.$dirty && myForm.email.$invalid">
</p>
</form>
<script>
var app=angular.module('myApp',[]);
app.controller('validateCtrl',function($scope){
$scope.user='John Doe';
$scope.email='john.doe@gmail.com';
});
</script>
</body>
</html>
4.验证属性:
**$dirty:表单有填写记录;
**$valid:字段内容合法的;
**$invalid:字段内容是非法的;
**$pristine:表单没有填写记录;