Question

我正在尝试使用角度js中的ng-init为选择框的选项设置默认值，但它不起作用。这是我到目前为止编写的代码。

var app = angular.module("myApp", [])

app.controller("mainController", ["$scope", function($scope){
    $scope.myoptions = "";
    $scope.mainList = [
      "firstOption",
      "secondOption",
      "thirdOption"
    ]
}]);

select{
width:50%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp">
<select ng-controller="mainController" ng-options="options as options for options in mainList" ng-model="myoptions" nginit="myoptions=mainList[1]">
</select>
</body>

请帮帮我。在此先感谢：）

Answer 1

你有

CFBundleTypeIconFiles

应该是

nginit

Answer 2

count_special

Answer 3

{j}

中ng-init没有nginit指令

var app = angular.module("myApp", [])

app.controller("mainController", ["$scope", function($scope){
    $scope.myoptions = "";
    $scope.mainList = [
      "firstOption",
      "secondOption",
      "thirdOption"
    ]
}]);

select{
width:50%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp">
<select ng-controller="mainController" ng-options="options as options for options in mainList" ng-model="myoptions" ng-init="myoptions=mainList[1]">
</select>
</body>

Answer 4

更改nginit="myoptions = mainList[1]"

到ng-init="myoptions = mainList[1]"

var app = angular.module("myApp", [])

app.controller("mainController", ["$scope", function($scope){
    
    $scope.mainList = [
      "firstOption",
      "secondOption",
      "thirdOption"
    ]
     
}]);

select{
width:50%;
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp">
<select ng-controller="mainController" ng-options="options as options for options in mainList" ng-model="myoptions" ng-init="myoptions = mainList[1]">
</select>
</body>

无法使用角度js在选择框中设置默认值

4 个答案: