我有一个使用角度js的表格。在表单提交时,如果字段无效,我将字段设置为脏。但问题是,即使将字段设置为脏,它也不会更改字段上的CSS属性。 ng-pristine
类仍然保留在这些元素上。在将字段设置为脏后,它不会将类更改为ng-dirty
。
提交表单后,您可以看到错误消息,但它没有应用ng-dirty
css类。
var sampleApp = angular.module("sampleApp", []);
sampleApp.controller('sampleCtrl', ['$scope', '$http', '$timeout',
function($scope, $http, $timeout) {
$scope.userData = {
fname: "",
lname: ""
};
$scope.submitted = false;
$scope.submitForm = function(registrationForm) {
$scope.registrationForm.fname.$dirty = true;
$scope.registrationForm.lname.$dirty = true;
if (registrationForm.$invalid) {
alert("form validation error.");
return;
} else {
alert("form submitted successfully.");
}
}
}
]);

input.ng-invalid {
border: 1px solid red;
}
input.ng-valid {
border: 1px solid green;
}
input.ng-pristine {
border-color: #FFFF00;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.4/angular.min.js"></script>
<script src="script.js"></script>
<html ng-app="sampleApp">
<body ng-controller="sampleCtrl">
<form name="registrationForm" ng-submit="submitForm(registrationForm)" novalidate>
First Name*
<br>
<input type="text" name="fname" ng-model="userData.fname" required>
<span ng-show="registrationForm.fname.$dirty && registrationForm.fname.$error.required">
First name is required.
</span>
<br>Last Name*
<br>
<input type="text" name="lname" ng-model="userData.lname" required>
<span ng-show="registrationForm.lname.$dirty && registrationForm.lname.$error.required">
Last name is required.
</span>
<br>
<br>
<input type="submit" value="Submit">
</form>
</body>
</html>
&#13;
答案 0 :(得分:3)
替换
$scope.registrationForm.lname.$dirty
带
$scope.registrationForm.lname.$setDirty();
$使用setDirty();
将表单设置为脏状态。
可以调用此方法来添加&#39; ng-dirty&#39;类并设置表单 到一个肮脏的状态(ng-dirty class)。此方法也将传播到 父母表格。