我一直在尝试验证 Checkbox set 和 Radio set 并使用 ng-messages 指令显示错误消息,但它没有按预期工作。 ng-messages 根本不显示错误消息。我正在使用 html 文件填充错误消息。在错误解决之前,我的表单中的提交按钮将被禁用。
在以下情况下,如何显示复选框集和单选集的错误消息:
这是我的表格:
<form name="userForm" ng-submit="submitForm()" novalidate>
<div class="form-group" ng-class="{ 'has-error' : userForm.subscribe.$invalid && !userForm.subscribe.$touched }">
<label class="checkbox-inline">
<input type="checkbox" id="subscribe1" value="option1" name="subscribe[]" ng-model="user.subscribe" required> 1
</label>
<label class="checkbox-inline">
<input type="checkbox" id="subscribe2" value="option2" name="subscribe[]" ng-model="user.subscribe" required> 2
</label>
<label class="checkbox-inline">
<input type="checkbox" id="subscribe3" value="option3" name="subscribe[]" ng-model="user.subscribe" required> 3
</label>
<div class="help-block" ng-messages="userForm.subscribe.$error" ng-show="userForm.subscribe.$invalid">
<div ng-messages-include="home/messages.html"></div>
</div>
</div>
<div class="form-group" ng-class="{ 'has-error' : userForm.gender.$invalid && !userForm.gender.$touched }">
<div class="radio">
<label>
<input type="radio" name="gender" value="male" ng-model="user.gender" />
male
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="gender" value="female" ng-model="user.gender" />
female
</label>
</div>
<div class="help-block" ng-messages="userForm.gender.$error" ng-show="userForm.gender.$invalid">
<div ng-messages-include="home/messages.html"></div>
</div>
</div>
<button type="submit" class="btn btn-primary btn-success " ng-disabled="userForm.$invalid">Submit</button>
</form>
messages.html
<span ng-message="required">This field is required</span>
<span ng-message="minlength">This field is too short</span>
<span ng-message="maxlength">This field is too long</span>
<span ng-message="required">This field is required</span>
<span ng-message="email">This needs to be a valid email</span>
Controller .js
angular.module('myApp', ['ngRoute', 'ngAnimate', 'ngMessages']);
angular
.module('myApp')
.controller('HomeCtrl', HomeCtrl);
HomeCtrl.$inject = ['$scope'];
function HomeCtrl($scope) {
$scope.userForm = {};
}
付款复选框集:
<div class="form-group" ng-class="{ 'has-error' : userForm.payment.$invalid && userForm.payment.$touched }">
<label class="checkbox-inline">
<input type="checkbox" id="payment1" value="Visa" name="payment" ng-blur="doTouched()" ng-model="user.payment[1]" ng-required="!someSelected(user.payment)"> Visa
</label>
<label class="checkbox-inline">
<input type="checkbox" id="payment2" value="Mastercard" name="payment" ng-blur="doTouched()" ng-model="user.payment[2]" ng-required="!someSelected(user.payment)"> Mastercard
</label>
<label class="checkbox-inline">
<input type="checkbox" id="payment3" value="Cash" name="payment" ng-blur="doTouched()" ng-model="user.payment[3]" ng-required="!someSelected(user.payment)"> Cash
</label>
<div class="help-block" ng-messages="userForm.payment.$error" ng-show="userForm.payment.$invalid && userForm.payment.$touched">
<div ng-messages-include="home/messages.html"></div>
</div>
</div>
最佳答案
检查此示例:
http://plnkr.co/edit/2w0lIf?p=preview
复选框列表使用 ng-required
带有 someSelected
的指令检查是否至少选择了一项的函数(在 Controller 中定义):
<div class="form-group" ng-class="{ 'has-error' : userForm.subscribe.$invalid && userForm.subscribe.$touched }">
<label class="checkbox-inline">
<input type="checkbox" id="subscribe1" value="option1" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[1]" ng-required="!someSelected(user.subscribe)"> 1
</label>
<label class="checkbox-inline">
<input type="checkbox" id="subscribe2" value="option2" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[2]" ng-required="!someSelected(user.subscribe)"> 2
</label>
<label class="checkbox-inline">
<input type="checkbox" id="subscribe3" value="option3" name="subscribe" ng-blur="doTouched()" ng-model="user.subscribe[3]" ng-required="!someSelected(user.subscribe)"> 3
</label>
<div class="help-block" ng-messages="userForm.subscribe.$error" ng-show="userForm.subscribe.$invalid && userForm.subscribe.$touched">
<div ng-messages-include="messages.html"></div>
</div>
</div>
选项按钮组更容易使用
ng-required
条件为 !user.gender
的指令:<div class="form-group" ng-class="{ 'has-error' : userForm.gender.$invalid && userForm.gender.$touched }">
<div class="radio">
<label>
<input type="radio" name="gender" value="male" ng-model="user.gender" ng-required="!user.gender"/>
male
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="gender" value="female" ng-model="user.gender" ng-required="!user.gender"/>
female
</label>
</div>
<div class="help-block" ng-messages="userForm.gender.$error" ng-if="userForm.gender.$touched">
<div ng-messages-include="messages.html"></div>
</div>
</div>
ngBlur
指令解决了复选框列表只有在列表中的所有项目都被模糊时才会“触摸”的问题,调用 doTouched() 函数:: $scope.doTouched = function() {
$scope.userForm.subscribe.$setTouched();
}
附言注意正确的名称:
userForm
是 <form>
的 HTML 名称, user
是绑定(bind)表单的模型的名称。
关于angularjs - 如何使用 ng-messages 显示 Checkbox set 和 Radio set 的错误消息?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34917981/