Angular-Formly:在用户点击时动态添加表单字段

Question

如何在表单中添加功能,以便用户可以通过单击"添加"添加更多输入字段.这使用角度形式库.

以下是精确功能的示例,但仅使用angularjs.

动态添加表单字段

Answer 1

看到这个Plunker

以下是您需要的示例.正如您在plunker中看到的那样,有一个TextArea可以在按钮点击时动态创建.TextAreas也可以通过remove单击按钮删除创建的内容.

请参阅下面的HTML

<div class="col-sm-10">
  <input type="button" class="btn btn-info" ng-click="addNewChoice()" value="ADD QUESTION">
  <div class="col-sm-4">
    <fieldset data-ng-repeat="field in choiceSet.choices track by $index">
      <textarea rows="4" cols="50" ng-model=" choiceSet.choices[$index]"></textarea>
      <button type="button" class="btn btn-default btn-sm" ng-click="removeChoice($index)">
        <span class="glyphicon glyphicon-minus"></span> REMOVE
      </button>
    </fieldset>
  </div>
</div>

和JS将是如下面

var app = angular.module('myApp', []);
app.controller('inspectionController', function($scope, $http) {
  $scope.choiceSet = {
    choices: []
  };
  $scope.quest = {};
  $scope.choiceSet.choices = [];
  $scope.addNewChoice = function() {
    $scope.choiceSet.choices.push('');
  };
  $scope.removeChoice = function(z) {
    $scope.choiceSet.choices.splice(z, 1);
  };
});

Answer 2

我举一个简单的例子.

var app = angular.module("app",[]);

app.controller("MyCtrl" , function($scope){
  
   $scope.data ={
       names:[{ name:""}]
   };
  
  $scope.addRow = function(index){
    var name = {name:""};
       if($scope.data.names.length <= index+1){
            $scope.data.names.splice(index+1,0,name);
        }
    };
  
  $scope.deleteRow = function($event,name){
  var index = $scope.data.names.indexOf(name);
    if($event.which == 1)
       $scope.data.names.splice(index,1);
    }
  
  });

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="MyCtrl">
   <table>
     <tr ng-repeat="name in data.names track by $index">
        <td> <input type="text" ng-model="data.names[$index].name"></td>
        <td> <input type="button" ng-click="addRow($index)" value="Add" ng-show="$last"></td>
        <td> <input type="button" ng-click="deleteRow($event,name)" value="Delete" ng-show="$index != 0"></td>
     </tr>
   </table> 
    <span>{{data|json}}</span>
</div>