Question

我有一个多选。我有两个不同的数组。我想多选择附带选定的值。

我想从数组中搜索ng-repeat id如果找到则会变为真，并且值将随选择而来。

我的AngularJS代码

<script>
      var app = angular.module('myApp', []);
    app.controller('MainCtrl', function($scope, $http) {

      $scope.name = "John Brad";

      $scope.important_selection = {
                  "error": false,
                  "client_data": {
                  "important": [
                      {
                          "id": 10,
                          "name": "Socially Responsible"
                      },
                      {
                          "id": 8,
                          "name": "LBGT"
                      },
                      {
                          "id": 4,
                          "name": "Education"
                      },
                      {
                          "id": 2,
                          "name": "Retirement"
                      }
                  ]
                },
                "status_code": 200
              };

    $scope.importants_series = {
                "error": false,
                "important": [
                    {
                        "id": 1,
                        "name": "Investment"
                    },
                    {
                        "id": 2,
                        "name": "Retirement"
                    },
                    {
                        "id": 3,
                        "name": "Insurance"
                    },
                    {
                        "id": 4,
                        "name": "Education"
                    },
                    {
                        "id": 5,
                        "name": "Tax"
                    },
                    {
                        "id": 6,
                        "name": "Estate"
                    },
                    {
                        "id": 7,
                        "name": "Business"
                    },
                    {
                        "id": 8,
                        "name": "LBGT"
                    },
                    {
                        "id": 9,
                        "name": "Offshore"
                    },
                    {
                        "id": 10,
                        "name": "Socially Responsible"
                    },
                    {
                        "id": 11,
                        "name": "Divorce"
                    }
                ],
                "status_code": 200
            };          
    });
    </script>

我的HTML代码

<select name="important[]" class="form-control" multiple="" required>
        <option ng-selected="important_selection.important.find(item => item.id === important.id)" ng-repeat="important in importants_series.important" value="{{important.id}}">{{important.name}}</option>
    </select>

现在我想在数组中搜索id，如果为true，那么它将被选中。我在ng-selected

中遇到了问题

Plunker Link for more details：https://plnkr.co/edit/BUnUNqr0IevJ5BkslZNM?p=preview

任何帮助都将表示感谢。

Answer 1

您应该在ng-options中使用ng-model和select来轻松进行数据绑定。

<select name="important[]" class="form-control" multiple="" required 
    ng-options="important.name for important in importants_series.important" 
    ng-model="important_selection.client_data.important"></select>

不幸的是ng-model只检查对象引用是否相等，所以我们需要额外的步骤来重新分配选择数组本身的数据

  var oldArray = $scope.important_selection.client_data.important;

  $scope.important_selection.client_data.important = [];

  oldArray.forEach(function(item) {
    var refItem = $scope.importants_series.important.find(function(i) {
      return i.id == item.id;
    });

    $scope.important_selection.client_data.important.push(refItem);
  });

或者您可以将其分配给新阵列。

Working plunker

AngularJS ng选定的问题

1 个答案: