javascript - 如何将数组/json值传递给 angularjs 模式上的选择

Question

我很确定这是一个非常容易解决的问题，但我被困住了。我有一个模态 angularjs，它打开一个表单，其中有一个 Select 元素和其他需要使用数组/JSON 值填充的元素。出于某种原因，我无法从 ModalForm Controller 或主页 Controller 传递这些值。我创建了这个 Plunker，它重现了问题。

主页代码为:

angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('ModalDemoCtrl', function($uibModal, $log, $document) {
  var $ctrl = this;
  $ctrl.items = ['item1', 'item2', 'item3'];

  $ctrl.animationsEnabled = true;

  $ctrl.open = function() {
    var modalInstance = $uibModal.open({
      animation: $ctrl.animationsEnabled,
      ariaLabelledBy: 'modal-title',
      ariaDescribedBy: 'modal-body',
      templateUrl: 'rostaDetail.html',
      controller: 'ModalInstanceCtrl',
      controllerAs: '$ctrl',
      resolve: {
        items: function() {
          return $ctrl.items;
        }
      }
    });

    modalInstance.result.then(function(selectedItem) {
      $ctrl.selected = selectedItem;
    }, function() {
      $log.info('Modal dismissed at: ' + new Date());
    });
  };


});

// Please note that $uibModalInstance represents a modal window (instance) dependency.
// It is not the same as the $uibModal service used above.

angular.module('ui.bootstrap.demo').controller('ModalInstanceCtrl', function($uibModalInstance, items) {
  var $ctrl = this;
  $ctrl.items = items;
  $ctrl.selected = {
    item: $ctrl.items[0]
  };

  $ctrl.ok = function() {
    $uibModalInstance.close($ctrl.selected.item);
  };

  $ctrl.cancel = function() {
    $uibModalInstance.dismiss('cancel');
  };
});

<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular-animate.js"></script>
<script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-2.5.0.js"></script>
<script src="example.js"></script>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

<div ng-controller="ModalDemoCtrl as $ctrl" class="modal-demo">
  <button type="button" class="btn btn-default" ng-click="$ctrl.open()">Open me!</button>
  <div ng-show="$ctrl.selected">Selection from a modal: {{ $ctrl.selected }}</div>
  <div class="modal-parent">
  </div>
</div>

打开我! 从模态中选择: {{ $ctrl.selected }}

模态形式为:

<!-- .Modal Form Edit Rosta -->

<div class="modal-header">
    <h3 class="modal-title" id="modal-title">Edit Roster</h3>
</div>
<div class="modal-body" id="modal-body">
    <form class="form-horizontal">
        <fieldset>
            <div class="form-group">
                <label class="col-md-4 control-label" for="selectDuty">Select Duty</label>
                <div class="col-md-4">
                    <select id="selectDuty" name="selectDuty" ng-model="item" ng-options='item in items' class="form-control"></select>
                </div>
            </div>
            <!-- Multiple Checkboxes -->
            <div class="form-group">
                <label class="col-md-4 control-label" for="checkboxes">Multiple Checkboxes</label>
                <div class="col-md-4">
                    <div class="checkbox">
                        <label for="checkboxes-0">
                      <input name="checkboxes" id="checkboxes-0" value="1" type="checkbox">
                      Option one
                    </label>
                    </div>
                </div>
            </div>

            <div class="modal-footer">
                <!-- Button (Double) -->
                <div class="form-group">
                    <!-- <label class="col-md-4 control-label" for="button1id">Double Button</label> -->
                    <div class="col-md-8">
                        <button id="buttonSave" name="buttonSave" class="btn btn-primary" ng-click="$ctrl.ok()">Save</button>
                        <button id="buttonDelete" name="buttonDelete" class="btn btn-danger" ng-click="$ctrl.delete()" ng-show="false">Delete</button>
                        <button type="button" class="btn btn-basic" ng-click="$ctrl.cancel()">Cancel</button>
                    </div>
                </div>
            </div>
        </fieldset>
    </form>
</div>

Answer 1

由于您使用了 controllerAs 语法，因此对于访问范围内的对象或函数，您应该使用 controllerAs 变量和 . 。这里是$ctrl。

应该是这样的。

 ng-options='item as item for item in $ctrl.items'

在 Controller 中:

 $ctrl.ok = function () {
   $ctrl.selected = {
      item: $ctrl.item
   };
  $uibModalInstance.close($ctrl.selected.item);
};

Demo