如何在 ng-repeat 中动态更新 ng-model? [英] How to update ng-model dynamically in ng-repeat?

问题描述

我的 angular 页面中的动态 ng-model 值遇到了一些问题.这是我的示例 JSON.

mytabs = [{名称:tab1"，值:[{值:值1"}，{值:值2"}，{值:value3"}，{值:值4"}]},{名称:tab2"，值:[{值:值1"}，{值:值2"}，{值:value3"}，{值:值4"}]}]

我想从这个 josn 做的是，在我的页面中创建一个视图，它将包含 tab1 和 tab2 作为页面的标题和相应的 value 作为 checkbox.用户将具有选择他的选项的选择性.提交时，我想获得他选择的选项.我想知道在我的控制器中选择了诸如 value1,value3 (frome tab1), value1,value2(from tab2) 之类的东西.我该怎么做?
这是我的示例方法.

<h1>{{tab.name}}</h1><div ng-repeat="val in tab.values"><input type="checkbox" ng-model="val.value"/>

<input type="button" value="submit" ng-click="checkValues(val)"

请帮帮我，
谢谢

解决方案

您应该稍微修改一下代码，您应该在对象中添加一个选中的属性并将复选框绑定到该模型.

请使用下面的想法或代码来更紧密地获得您想要的东西

 
<h1>{{tab.name}}</h1><div ng-repeat="val in tab.values"><input type="checkbox" ng-model="val.checked"/>

<input type="button" ng-click="checkValues()" value="checkitems"/><脚本>var app = angular.module('plunker', []);app.controller('MainCtrl', function ($scope,$filter) {$scope.mytabs = [{名称:tab1"，值: [{ value: "value1",checked:false },{值:value2"，检查:假}，{值:value3"，检查:假}，{ 值:value4"，检查:false }]},{名称:tab2"，值: [{值:value1"，检查:假}，{值:value2"，检查:假}，{值:value3"，检查:假}，{ 值:value4"，检查:false }]}];$scope.checkValues = 函数 () {angular.forEach($scope.mytabs, function (value, index) {var selectedItems = $filter('filter')(value.values, {checked: true });angular.forEach(selectedItems, function (value, index) {警报(值.值)；});});};});

I am facing some problem with dynamic ng-model values in my angular page. Here is my sample JSON.

mytabs = [
    {
        name : "tab1",
        values : [
            {value:"value1"},
            {value:"value2"},
            {value:"value3"},
            {value:"value4"}
        ]
    },
    {
        name : "tab2",
        values : [
            {value:"value1"},
            {value:"value2"},
            {value:"value3"},
            {value:"value4"}
        ]
    }
]

What I want to do from this josn is, creating a view in my page such that, It will contain tab1 and tab2 as headings of page and the respective value as a checkbox. The user will have the selectivity to select his option. On submit I want to get the options he selected. I want to know something like value1,value3 (frome tab1), value1,value2(from tab2) are selected, in my controller. How can I do this?
Here is my sample approach.

<div ng-repeat="tab in mytabs">
  <h1>{{tab.name}}</h1>
    <div ng-repeat="val in tab.values">
        <input type="checkbox" ng-model="val.value"/>
    </div>
</div>
<input type="button" value="submit" ng-click="checkValues(val)"

Please help me,
Thank you

解决方案

You should modify you code a little bit you should add a checked property in the object and bind checkbox to that model .

Kindly could use the below idea or code to get what you want more closely

 <div ng-repeat="tab in mytabs">
  <h1>{{tab.name}}</h1>
    <div ng-repeat="val in tab.values">
        <input type="checkbox" ng-model="val.checked"/>
    </div>
</div>
<input type="button" ng-click="checkValues()" value="checkitems" />

    <script>
        var app = angular.module('plunker', []);

        app.controller('MainCtrl', function ($scope,$filter) {
            $scope.mytabs = [
                {
                    name: "tab1",
                    values: [
                        { value: "value1",checked:false },
                        { value: "value2", checked: false },
                        { value: "value3", checked: false },
                        { value: "value4", checked: false }
                    ]
                },
                {
                    name: "tab2",
                    values: [
                       { value: "value1", checked: false },
                       { value: "value2", checked: false },
                       { value: "value3", checked: false },
                       { value: "value4", checked: false }
                   ]
                }
            ];

            $scope.checkValues = function () {
                angular.forEach($scope.mytabs, function (value, index) {
                    var selectedItems = $filter('filter')(value.values, { checked: true });
                    angular.forEach(selectedItems, function (value, index) {
                        alert(value.value);
                    });

                });
            };
        });

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