CODEWITHSUNDEEP
angularjs
ps0604
ps0604

Reputation: 1071

AngularJS: How to validate ng-repeat form fields

The code below is my attempt to validate a list of values in a form. The values are in a table within an ng-repeat directive and should be validated as required. Any inputs will be appreciated.

<form name="form1">
  <table>
    <tr ng-repeat="param in params">
     <td>
        {{param.name}}
     </td>
     <td>
         <input name="i{{$index}}" ng-model="param.val" required />
         <span style="color:red" ng-show="form1.i{{$index}}.$dirty && form1.i{{$index}}.$invalid">
            <span ng-show="form1.i{{$index}}.required">This field is required</span>
         </span>
       </td>
     </tr>
  </table>
</form>

Upvotes: 4

Views: 6921

Answers (2)

Emanuel Ralha
Emanuel Ralha

Reputation: 764

<form name="form1" ng-controller="mycontroller">
  <table>
    <tbody>
      <tr ng-repeat="param in params">
        <td>{{param.name}}</td>
        <td>
          <input name="i{{$index}}" ng-model="param.val" required="" />
          <span style="color:red" ng-show="form1.['i{{$index}}'].$dirty && form1.['i{{$index}}'].$invalid">
            <span ng-show="form1.['i{{$index}}'].required">This field is required</span>
          </span>
        </td>
      </tr>
    </tbody>
  </table>
</form>

Working sample: http://plnkr.co/edit/pxtnW5vzWP8J4KYno3jN?p=preview

Upvotes: 3

New Dev
New Dev

Reputation: 49590

I think @SunilD'2 comment to another answer is worth an answer of its own, because the approach with ng-form can facilitate more validation scenarios (for example, highlighting a row in the table where one of the inputs is invalid)

<form name="form1">
  <table>
    <tr ng-repeat="param in params">
     <td>
        {{param.name}}
     </td>
     <td ng-form="cellForm">
         <input ng-model="param.val" required />
         <span ng-show="cellForm.$dirty && cellForm.$invalid">
            <span ng-show="cellForm.$error.required">This field is required</span>
         </span>
       </td>
     </tr>
  </table>
</form>

Validity of nested ng-form sets the validity of their parent form.

plunker

Upvotes: 4

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