Javascript AngularJS:ng模型在表内的动态下拉列表中不工作

我正在尝试基于按钮单击创建动态行。这些行有下拉框。问题是，当我添加新行并在新行中选择一个选项时，我在前几行中选择的选项也在更改，我的意思是前几行的选项没有正确绑定

我的HTML代码：

<div id="features" ng-controller="featuresCtrl">
    <br>
    <div class="row">
        <div class="form-group col-md-6">
            <table  cellpadding="15" cellspacing="10">
                <thead>
                <tr>
                    <th style="text-align: center;">Feature</th>
                    <th style="text-align: center;">Type</th>
                    <th style="text-align: center;">Value</th>
                    <th></th>
                    <th></th>
                </tr>
                </thead>
                <tbody>

                <tr></tr>
                <tr ng-repeat="r in rows">
                <td>
                    <select ng-model="r.data.model" ng-options="option.name for option in data.availableOptions"
                            ng-change="getValues(r.data.model.name)">
                        <option value="">Select Feature</option>
                    </select>

                    </td>
                    <td>
                        <select ng-model="r.updateData.model" ng-options="option.name for option in updateData.availableOptions"
                                ng-change="getBinSet(r.updateData.model.name)">
                            <option value="">Select Type</option>
                        </select>
                    </td>
                    <td>
                        <select ng-model="r.binData.model" ng-options="option.name for option in binData.availableOptions">
                            <option value="">Select Value</option>
                        </select>
                    </td>
                    <td  ng-if="showAdd">
                        <div class="text-center">
                            <button ng-click="addRow()">Add</button>
                        </div>
                    </td>
                    <td  ng-if="showAdd">
                        <div class="text-center">
                            <button ng-click="remove($index)">Remove</button>
                        </div>
                    </td>
                </tr>
                <tr>
                    <td></td>
                    <td style="align-self: center;">
                        <button style="align-self: center" ng-click="submitForm(rows)">Submit</button>
                    </td>
                    <td></td>
                </tr>

                </tbody>
            </table>
            <br>
        </div>

---

有人能告诉我我做错了什么吗？

应该是这样的

var-app=angular.module（“app”，[]）；
应用程序控制器（'MainCtrl'，函数（$scope）{
$scope.updateData={
选择：[{
行：[{name:：}]
}
]
};
$scope.addRow=函数（索引）{
$scope.index=0；
var行=[]；
var name={name:：}；
row.push（名称）；
如果（$scope.updatedata.selections.length），您应该为新下拉列表定义新的
模型。谢谢hadiJaz。我是否需要为每个下拉列表创建updatedata.selections？ng model=“r.data.model”不应该创建新的model@hadjJz我尝试通过添加更多下拉列表来喜欢url，但当我更改第二个下拉列表时，第一个下拉列表仍在更改one@hadjJz：我的问题是有多个下拉列表，其中一个下拉列表基于另一个下拉列表的值。由于我是AngualJs的新手，这个概念让我非常困惑。我认为使用r.data.mo戴尔应该为每一行创建新的模型。这是错误的吗？很高兴帮助您：）
'use strict';

var testControllers = angular.module('testControllers');

testControllers.controller('featuresCtrl', ['$scope','$route','$filter', '$http', '$location','$window','$timeout', 'NgTableParams',
    function($scope, $route, $filter, $http, $location, $window, $timeout, NgTableParams) {

        $scope.rows = [{}];
        $scope.nrows = [];
        $scope.showAdd = false;


        $scope.addRow = function() {
            $scope.rows.push({

            });

        };

        $scope.remove = function(index) {
                $scope.rows.splice(index, 1);
        };

        $scope.submitForm = function(rows) {
            console.log("rows", rows);
        };

        $scope.data = {
            model: null,
            availableOptions: [
                { name: 'TestA'},
                { name: 'TestB'},
                { name: 'TestC'},
                { name: 'TestD'}

            ]
        };

        $scope.getValues = function (featureType) {
            console.log("getValues", featureType);

            $scope.showAdd = false;


            if (featureType != null) {

                $http.get('/getPropensityValues.do', {params: {'featureType': featureType}}).success(function (data) {
                    var test = [];
                    angular.forEach(data, function (item) {
                        test.push({name: item});
                    });
                    $scope.updateData = {
                        model: null,
                        availableOptions : test
                    };
                });
            }
        };

        $scope.getBinSet = function (featureType) {
            console.log("getBinSet", featureType);

            $scope.showAdd = true;

            if (featureType != null) {
                $scope.binData = {
                    model: null,
                    availableOptions: [
                        {name: '1'},
                        {name: '2'},
                        {name: '3'},
                        {name: '4'},
                        {name: '5'},
                        {name: '6_10'},
                        {name: '10_15'},
                        {name: '16_20'},
                        {name: '21_25'},
                        {name: '26_30'},
                        {name: '31_35'},
                        {name: '36_40'},
                        {name: '41_45'},
                        {name: '46_50'},
                        {name: '>50'}
                    ]
                };

            }
        };

    }]);