如何设置一个动态的表单字段变脏或用角度触摸?
问题描述:
我有一个是通过一些API接收到的数据生成一个动态的形式,你可以看到和例子吧here,接收到的数据是这样的:如何设置一个动态的表单字段变脏或用角度触摸?
$scope.users = [
{
name: 'one',
email: '[email protected]'
},
{
name: '',
email: '[email protected]'
},
{
name: '',
email: '[email protected]'
}
];
我创建这些项目动态的形式,但我有我的验证消息无法正确显示的问题,它们是类似这样的:
<form name="usersForm">
<div ng-form="subForm" ng-repeat="user in users">
<input name="name" type="text" ng-model="user.name" required />
<p ng-if="subForm.name.$invalid && subForm.name.$touched">
name is required
</p>
<input name="email" type="email" ng-model="user.email" required />
<p ng-if="subForm.email.$invalid && subForm.email.$touched">
email is required
</p>
</div>
</form>
,你可以看到在plunkr,我用两种方法这样做的,一种是采用ng-form
,另一个使用插入表单输入名称:
<form name="usersForm2">
<div ng-repeat="user in users track by $index">
<input name="name{{$index}}" type="text" ng-model="user.name" required />
<p ng-if="usersForm2['name' + $index].$invalid && usersForm2['name' + $index].$touched">
name is required
</p>
<input name="email" type="email" ng-model="user.email" required />
<p ng-if="usersForm2['email' + $index].$invalid && usersForm2['email' + $index].$touched">
email is required
</p>
</div>
</form>
如何向用户显示我的验证消息(当表单被加载或呈现时)?
答
看到更新plunker或运行下面的代码
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope) {
$scope.users = [
{
name: 'one',
email: '[email protected]'
},
{
name: '',
email: '[email protected]'
},
{
name: '',
email: '[email protected]'
}
];
});
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link href="style.css" rel="stylesheet" />
<script src="https://code.angularjs.org/1.5.4/angular.js"></script>
<!-- By setting the version to snapshot (available for all modules), you can test with the latest master version -->
<!--<script src="https://code.angularjs.org/snapshot/angular.js"></script>-->
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<div>
First approach using ng-form
</div>
<form name="usersForm">
<div ng-form="subForm" ng-repeat="user in users">
<input name="name" type="text" ng-model="user.name" required />
<p ng-if="subForm.name.$invalid && subForm.name.$error">
name is required
</p>
<input name="email" type="email" ng-model="user.email" required />
<p ng-if="subForm.email.$invalid && subForm.email.$error">
email is required
</p>
</div>
</form>
<div>
second approach using interpolation
</div>
<form name="usersForm2">
<div ng-repeat="user in users track by $index">
<input name="name{{$index}}" type="text" ng-model="user.name" required />
<p ng-if="usersForm2['name' + $index].$invalid && usersForm2['name' + $index].$error">
name is required
</p>
<input name="email" type="email" ng-model="user.email" required />
<p ng-if="usersForm2['email' + $index].$invalid && usersForm2['email' + $index].$error">
email is required
</p>
</div>
</form>
</body>
</html>
感谢您的答案,但我不想改变显示的错误消息的条件。 – Rachmaninoff
你说你想要显示错误消息给用户在表单加载权?我没有改变任何东西,只是增加了'$ error',你可以使用'$ touched'来结合它 – nivas