2

虽然 ng-model 用于选择框，并且 ng-selected 也用于选项中，但在某些情况下，时间 ng-selected 不起作用。

如果我将删除 ng-model 而不是 ng-selected 工作，但如果我将删除 ng-model 而不是我应该如何获取控制器中选择框的值。

请帮忙 ！

这是我的代码...

HTML：

<select class="form-control" ng-change="accessModeSelected()">
     <option ng-selected="mode.status == '1'"  ng-repeat="mode in storageResult.accessMode" ng-value="mode.name" name="accessMode{{$index}}" id="accessMode">
           {{mode.name}}
     </option>
</select>

AngularJS：

$scope.storageResult   = {
           "storageAccount":"Enable", 
           "user": "sdcard",
           "pass": "sdcard",
           "wifiIP": "0",
           "ipAddr": "0",
           "accessMode": [
                {"name": "Local Storage","status": "0"},
                {"name":"WiFi Storage", "status": "1"},
                {"name":"Internet Storage", "status": "0"}
            ]
         }
4

3 回答 3

11

使用ng-optionsand ng-init（用于设置默认值）代替ng-repeat.

ng-options专门用于select

<select class="form-control" ng-init="statusselect='WiFi Storage'" ng-model="statusselect" ng-options="mode.name as mode.name for mode in storageResult.accessMode">

</select> Selected Value : {{statusselect}}

小提琴

编辑：使用ng-repeat

我更喜欢ng-options，但如果你想与你一起使用ng-selected，ng-repeat你需要ng-model从你的controller 

<select class="form-control" ng-model="statusselect">
     <option ng-selected="{{mode.name == statusselect}}" ng-repeat="mode in storageResult.accessMode" value="{{mode.name}}" name="accessMode{{$index}}" id="accessMode">
           {{mode.name}}
     </option>
</select> Selected Value : {{statusselect}}

内部控制器

$scope.storageResult  = {
           "storageAccount":"Enable", 
           "user": "sdcard",
           "pass": "sdcard",
           "wifiIP": "0",
           "ipAddr": "0",
           "accessMode": [
                {"name": "Local Storage","status": "0"},
                {"name":"WiFi Storage", "status": "1"},
                {"name":"Internet Storage", "status": "0"}
            ]
         }
   $scope.statusselect = $scope.storageResult["accessMode"][1]["name"];

小提琴

于 2016-09-23T05:52:21.133 回答
2

使用 ng-options 而不是 ng-repeat

<select ng-model="status"  ng-options="mode.status as mode.name for mode in storageResult.accessMode">

和在控制器中

app.controller("dobController", ["$scope", "$http",
  function($scope, $http) {

    $scope.storageResult = {
      "storageAccount": "Enable",
      "user": "sdcard",
      "pass": "sdcard",
      "wifiIP": "0",
      "ipAddr": "0",
      "accessMode": [{
        "name": "Local Storage",
        "status": "0"
      }, {
        "name": "WiFi Storage",
        "status": "1"
      }, {
        "name": "Internet Storage",
        "status": "0"
      }]
    };
    $scope.status = '1';

  }
]);

演示

于 2016-09-23T05:39:56.260 回答
1

我敢肯定有很多方法可以回答这个问题，并且已经提供了很多答案，但是基于 OP 关于如何发送 ' mode.name'的问题，ng-model我在下面使用ng-options.

在你的 JS

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

    app.controller("dobController", ["$scope", "$http",
        function($scope, $http) {


            $scope.storageResult = {
                "storageAccount": "Enable",
                "user": "sdcard",
                "pass": "sdcard",
                "wifiIP": "0",
                "ipAddr": "0",
                "accessMode": [{
                    "name": "Local Storage",
                    "status": "0"
                }, {
                    "name": "WiFi Storage",
                    "status": "1"
                }, {
                    "name": "Internet Storage",
                    "status": "0"
                }]
            };
            $scope.status = $scope.storageResult.accessMode[0].name;
            $scope.selectedItem = '';

        }
    ]);

在您的 HTML 中将模式名称绑定到 ng-model 遵循此。

<select ng-model="status"  ng-options="mode.name as mode.name for mode in storageResult.accessMode">

要绑定整个对象，您可以尝试以下语法

<select ng-model="status"  ng-options="mode as mode.name for mode in storageResult.accessMode">

为此，请对您的 JS 进行一些小改动，$scope.status例如 

$scope.status = $scope.storageResult.accessMode[0];

这是一个DEMO plunker

于 2016-09-23T07:16:53.030 回答