Question

HTML

  <select class="form-control"
          ng-model="campaign.CampaignTypeId"
          ng-options="CampType.id as CampType.name for 
         CampType in CampaignTypeIds track by CampType.id" >
      <option value="">Select campaign type</option>
  </select>

的JavaScript

 $scope.CampaignTypeIds = [{ id: "1", name: "Location" }, { id: "2", name: "Brand" }];

 $scope.getSingleCampaignResponse = function (response) {//http get method gets the resposne
    $scope.campaign= response
}

如果我将广告系列对象作为回复并且该对象具有 CampaignTypeId：1 ，但我无法将 CampaignTypeId 绑定到ng-model以进行选择选项

Answer 1

诀窍是ng-options你必须像这样ng-options="CampType as CampType.name for CampType in CampaignTypeIds track by CampType.id"。您可以在此plunker中看到它正常工作。您还可以将ng-model绑定到对象，例如ng-model="campaign"。

标记：

<body ng-app="myApp" ng-controller="myCtrl">
    <select class="form-control"
            ng-model="campaign"
            ng-options="CampType as CampType.name for 
            CampType in CampaignTypeIds track by CampType.id" >
        <option value="">Select campaign type</option>
    </select>
</body>

在控制器上：

angular.module('myApp', [])
.controller('myCtrl', ['$scope', '$timeout', function($scope, $timeout) {
    $scope.CampaignTypeIds = [{
      id: "1",
      name: "Location"
    }, {
      id: "2",
      name: "Brand"
    }];

    $scope.getSingleCampaignResponse = function(response) { 
        $scope.campaign = response; 
    }

    //simulating request
    $timeout(function() {
      $scope.getSingleCampaignResponse({ id: "2" });
      // or if you want like this
      // $scope.getSingleCampaignResponse({ id: "2" , name : "brand"});
    }, 2000)
}]);

注意超时是在2秒后模拟请求。

无法将值绑定到事件中的选择选项的ng-model

1 个答案: