AngularJS需要ng-repeat中的字段验证 [英] AngularJS required field validation in ng-repeat

问题描述

我正在尝试按照 AngularJS示例进行内联验证必填字段.但是，在使用ng-repeat时，它似乎对我不起作用.

I am trying to follow the AngularJS example of doing inline validations of required fields. However when it comes to using a ng-repeat, it doesn't seem to work for me.

<form name="myForm" novalidate>
  Me: <input required type="text" name="myName" ng-model="name" />
  <span class="error" ng-show="myForm.myName.$error.required">Required!</span>
  <div ng-repeat="friend in friends">
      Friends: <input required type="text" name="myFriend[{{$index}}]" ng-model="friend.name" />
      <span class="error" ng-show="myForm.myFriend[{{$index}}].$error.required">Required</span>
  </div>
</form>

JSFiddle

有什么主意我做错了什么或者我可以做些什么来解决?

Any idea what I am doing wrong or what I can do to fix it?

推荐答案

不幸的是，您不能那样做.输入元素不喜欢动态生成名称.您将需要使用ng-form作为子表单，并包装重复的元素.这是您的小提琴的叉子: http://jsfiddle.net/p26VQ/

Unfortunately you cannot do it that way. The input element does not like having the name dynamically generated. You will need to use ng-form as a subform and wrap the repeated element. Here is a fork of your fiddle: http://jsfiddle.net/p26VQ/

<div ng-controller="MyCtrl">
  <form name="myForm" novalidate>
      Me: <input required type="text" name="myName" ng-model="name" /><span class="error"  ng-show="myForm.myName.$error.required">
  Required!</span>
      <div ng-repeat="friend in friends">
          <ng-form name="subform{{$index}}">
              Friends: <input required type="text" name="myFriend" ng-model="friend.name" /> 
              <span class="error" ng-show="subform{{$index}}.myFriend.$error.required">Required</span>
          </ng-form>
      </div>
  </form>
</div> 

这篇关于AngularJS需要ng-repeat中的字段验证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！