多个 ng-options 下拉菜单无法正常工作？

Question

我是 angular 的新手，使用 ng-options 在下拉列表中显示值。我在一种形式中总共有 4 个下拉列表。如果我先 select 下拉菜单的值，然后转到第二个下拉菜单 select any value 然后首先下拉的值将消失。同样发生在第三和第四。最后只有第四个下拉菜单的 selected 值我可以看。在成功表格上，我想显示弹出窗口。下面是我的下拉菜单和脚本代码。

<select ng-model="empInfo" ng-options="emp.candidate_name for emp in names4" class="span2">
</select>                       

<select ng-model="empInfo" ng-options="emp.company_name for emp in names" class="span2">
</select>                       

<select ng-model="empInfo" ng-options="emp.designation_type for emp in names1" class="span2">                                           
</select>


var app = angular.module('myApp', ['720kb.datepicker']);
app.controller('MyController', function($scope, $http) {
    $http.get("http://www.adhr.adnacgroup.com/ADHRM/companyJson.php")
    .then(function(response) {
        $scope.names = $scope.names = response.data.service;
    });

    $http.get("http://www.adhr.adnacgroup.com/ADHRM/designationJson.php")
    .then(function(response) {
        $scope.names1 = $scope.names1 = response.data.service;
    });

    $http.get("http://www.adhr.adnacgroup.com/ADHRM/finalCandidatesJson.php")
    .then(function(response) {
        $scope.names4 = $scope.names4 = response.data.service;
    });

    $scope.insertInfo = function(info) {
        $http.post('addconfirmation.php?confirmation=',{
            "referal_code":info.referal_code,
            "candidate_id":info.candidate_id,
            "company_id":info.company_id,
            "designation_type_id":info.designation_type_id,
            "address":info.address,
            "joiningdate":info.joiningdate,
        }).success(function(data1) {
            if (data1 == true) 
            {
                getInfo();          
                $('#empForm').css('display', 'none');
            }
        });
}

Answer 1

您必须在每个下拉菜单中分配不同的 scope。在每个 select 标签上具有相同的 ng-model 然后一个覆盖另一个。

例如:

<select  ng-model="empInfo1" ng-options="emp.company_name for emp in names">
<select  ng-model="empInfo2" ng-options="emp.company_name for emp in names">

多个 ng-options 下拉菜单无法正常工作？

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angularjs

ng-options