默认值不是？ 对象：null吗？ 在选择选项Angularjs中

Question

This is code in file js

$scope.ListOption = [];
$scope.ListOption.push({ Value: "0", Name: Car });
$scope.ListOption.push({ Value: "1", Name: House });

Here's what the code HTML looks like

<select class="form-control" id="Category" ng-model="Category">

<option ng-repeat="option in ListOption" value="{{option.Value}}">
 {{option.Name}}</option>

</select>

The generated html is

<select class="form-control ng-pristine ng-valid" ng-model="Category" style="padding: 0px;">
<option value="? object:null ?"></option>
<option ng-repeat="option in ListOption" value="0" class="ng-binding ng-scope">Car</option>
<option ng-repeat="option in ListOption" value="1" class="ng-binding ng-scope">House</option>
</select>

I have quite a headache on this issue. Looking forward to having someone help me the other way.

Answer 1

it's wrong. you are matching with option . Change it. I suggest, use the track by $index for no repeat options

<option value="{{option.Value}}" ng-repeat="option in ListOption track by $index">
 {{option.Name}}
</option>

Answer 2

I think the mistake is that you used the main array to get value instead of iterable option object. Actually, this should work:

<select class="form-control" id="Category" ng-model="Category">
<option ng-repeat="option in ListOption" value="{{option.Value}}">
 {{option.Name}}
</option>
</select>

Answer 3

Hope this is helpfull :)

VIEW

<select class="form-control" data-ng-options="list.Name for list in ListOption" data-ng-model="selectedValue">

MODEL

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope, $http, $log) {
$scope.ListOption = [];
$scope.ListOption.push({ Value: "0", Name: "Car" });
$scope.ListOption.push({ Value: "1", Name: "House" });
$scope.selectedValue = [];

$scope.selectedValue = $scope.ListOption[0];

});