AngularJS手动表单验证
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2023-09-06 09:34:11
所谓手动验证是通过angularjs表单的属性来验证，而成为angularjs表单必须满足两个条件：
1、给form元素加上novalidate="novalidate"...
所谓手动验证是通过angularjs表单的属性来验证，而成为angularjs表单必须满足两个条件：
1、给form元素加上novalidate="novalidate"；
2、给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让表单不要使用html验证-->
<!--theform变成scope的一个字段-->
<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.$submitted)">email格式不正确</p>
</div>
<div class="form-group">
<label for="username">username</label>
<input type="text" class="form-control" id="username" ng-model="formmodel.username"/>
</div>
<div class="form-group">
<label for="age">age</label>
<input type="number" class="form-control" id="age" ng-model="formmodel.age"/>
</div>
<div class="form-group">
<label for="sex">sex</label>
<select name="sex" id="sex" class="form-control" ng-model="formmodel.sex">
<option value="">please choose</option>
<option value="male">mail</option>
<option value="femail">femail</option>
</select>
</div>
<div class="form-group">
<label for="password">password</label>
<input type="text" class="form-control" id="password" ng-model="formmodel.password"/>
</div>
<div class="form-group">
<button class="btn btn-primary" type="submit">register</button>
</div>
<pre>
{{theform | json}}
</pre>
</form>
</div>
<script src="../node_modules/angular/angular.min.js"></script>
<script src="second.js"></script>
</body>
</html>
- ● 给form加上novalidate="novalidate"意味着表单将不再使用html5验证特性
- ● 给form加上name="theform"意味着表单的名称是theform。如何使用theform,比如我们验证表单是否被修改过theform.$submitted
- ● 通过ng-submit提交表单
- ● formmodel是$scope中的一个属性
- ● 对表单的email进行了手动验证，使用了angularjs表单的众多属性，比如theform.email.$valid，theform.$pristine，theform.$submitted， theform.email.$error.required，theform.email.$error.email
- ● 通过<pre>{{theform | json}}</pre>把angularjs表单的所有属性都打印出来
{
"$error": {
"required": [
{
"$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",
"$options": null
}
}
以上，凡是有name属性的input都被显示在上面。
在second.js文件中定义了module,controller以及提交表单的方法。
var myapp1 = angular.module('myapp1',[]);
myapp1.controller('myctrl1', function($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);
};
});
以上的表单验证方式好处是可控性强，但相对繁琐。
以上就是本文的全部内容，希望对angularjs手动表单验证能够熟练操作。
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