AngularJS中的MultiSelect相互依赖下拉列表

问题描述

我想在javascript / jQuery / AngularJS中有一个多选的相互依赖下拉列表。假设数据来自数据库查询，则下拉列表已预先填充。

字段：

• Drop-down-1
• Drop-down-2
• Drop-down-3
• 提交按钮

如果我们选择下拉列表2，则其他两个下拉列表应根据下拉列表1进行更新，反之亦然。类似于图片中的Excel功能。

该怎么做？

angular.module('myApp',[])
  .controller('MyController',MyController)

function MyController($scope) {
  $scope.candidateSel = undefined;
  $scope.selecetedCompany = undefined;
  $scope.selecetdLoc = undefined;

  $scope.listData = [{
    "candidate_id": "1","candidate_name": "Name1","candidate_email": "[e-mail]","candidate_com": "Company1","candidate_loc": "com1_loc1","candidate_dep": "com1_loc1_dep1"
  },{
    "candidate_id": "3","candidate_name": "Name 3_title_1","candidate_email": "[e-mail]",{
    "candidate_id": "5","candidate_name": "Smith","candidate_email": "[e-mail]","candidate_com": "Company2","candidate_loc": "com2_loc2","candidate_dep": "com2_loc2_dep1"
  },{
    "candidate_id": "6","candidate_dep": "com2_loc2_dep1"
  }];

  $scope.getInfo = function() {
    if ($scope.candidateSel) {
      $scope.company = [$scope.candidateSel['candidate_com']];
      $scope.location = [$scope.candidateSel['candidate_loc']];
    }
  };

}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.3/angular.min.js"></script>
<div ng-app="myApp" ng-controller="MyController">

  <div>
    Names:
    <select id="names" ng-model="candidateSel" ng-options="data.candidate_name for data in listData track by data.candidate_id" ng-change="getInfo()">
      <option value=''>Select</option>
    </select>
  </div>

  <div>
    Company:
    <select id="company" ng-disabled="!candidateSel" ng-model="selecetedCompany" ng-options="cancompany for cancompany in company">
      <option value="">Select</option>
    </select>
  </div>

  <div>
    Location:
    <select id="location" ng-disabled="!selecetedCompany" ng-model="selecetdLoc" ng-options="canloc for canloc in location">
      <option value="">Select</option>
    </select>
  </div>

</div>

解决方法

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