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Why my ng-options bound value doesn't work - Stack Overflow
PHPz
PHPz 2017-05-15 17:13:54
0
2
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$scope.selected=0;

<select class="form-control lls-input-lg" id="cooperationPlatform" ng-model="selected">
    <option value="0">全部</option>
    <option ng-repeat="o in keyArr"
          value="{{o.id}}">
        {{o.prodName}}
     </option>
</select>

It comes out like this

And it is not selected by default

Another point is that if I use ng-options, it will look like this

The value is very strange. In my data, id: 1, like this, there is an additional label

Please answer! !

PHPz
PHPz

学习是最好的投资！

reply all(2)
Ty80
Ty802017-05-15 17:15:54 2 floor

You need to use ng-value for value binding. It is also recommended to add the default options to the array and perform them uniformly ng-repeat 循环就好了。同时建议命名规范一下哈如：user in users 或 produce in produces in this form.

ng-options example

<select class="form-control lls-input-lg" id="cooperationPlatform"
   ng-options="o.prodName for o in keyArr"
   ng-model="selected">
</select>

----------

$scope.selected=$scope.keyArr[1];

ng-value example

<!DOCTYPE html>
<html lang="en" ng-app="myapp">
<head>
    <meta charset="UTF-8">
    <title>Angular Repeat-Done Demo</title>
    <script src="https://cdn.bootcss.com/angular.js/1.6.3/angular.min.js"></script>
</head>
<body ng-app="myapp">
<p ng-controller="AppCtrl">
    <h4>Users List</h4>
    <select class="form-control lls-input-lg" id="cooperationPlatform" ng-model="selected">
        <option ng-repeat="o in keyArr"
                ng-value="{{o.id}}">
            {{o.prodName}}
        </option>
    </select>
</p>
<script type="text/javascript">
    var myapp = angular.module("myapp", [])
            .controller("AppCtrl", ['$scope', function ($scope) {
                $scope.selected=2;
                $scope.keyArr = [
                    {
                        id: 0,
                        prodName: '全部'
                    },
                    {
                        id: 1,
                        prodName: '天金所'
                    },
                    {
                        id: 2,
                        prodName: '测试'
                    },
                    {
                        id: 3,
                        prodName: '还是测试'
                    }
                ]
            }])
</script>
</body>
</html>
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给我你的怀抱
给我你的怀抱2017-05-15 17:15:54 1 floor

https://docs.angularjs.org/ap...

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