Html 如何设置angularjs下拉选项值？_Html_Angularjs_Angularjs Scope_Angularjs Ng Options

Html 如何设置angularjs下拉选项值？

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Html 如何设置angularjs下拉选项值？,html,angularjs,angularjs-scope,angularjs-ng-options,Html,Angularjs,Angularjs Scope,Angularjs Ng Options,我已成功地在两个下拉列表中设置了该选项在我的下拉列表中，一个依赖于另一个假设在我的数据库中，父名是Sally，子名是SallyChild2，当更新此页面时，我需要填充整个数据使用选择此特定的父名称为Sally，子名称为SallyChild2 我的数据库值是Parent-Sally和Child-SallyChild2 所以我想换个孩子——莎莉·希尔德所以我硬编码为这个wat，但不工作 $scope.selectedParent="Sally"; $scope.selectedChild="

我已成功地在两个下拉列表中设置了该选项

在我的下拉列表中，一个依赖于另一个

假设在我的数据库中，父名是Sally，子名是SallyChild2，当更新此页面时，我需要填充整个数据使用选择此特定的父名称为Sally，子名称为SallyChild2

我的数据库值是Parent-Sally和Child-SallyChild2

所以我想换个孩子——莎莉·希尔德

所以我硬编码为这个wat，但不工作

$scope.selectedParent="Sally";
$scope.selectedChild="SallyChild2";

但它不起作用

$scope.selectedParent="Sally";
$scope.selectedChild="SallyChild2";

这是我的script.js

script.js

var app=angular.module('TestApp', ['angular.filter','ui.router']);

app.config(function($stateProvider, $urlRouterProvider) {

    $urlRouterProvider.otherwise('/');

    $stateProvider
    .state('category',
    {
    views : {   
        "body" :
    {
        url : '/category',
        templateUrl : 'category.html',
        controller : 'TestController'
    }
    }   

    })

    .state('category.subcategory',
    {
    url : '/subcategory',
    views : {                              
    "subbody@category" :
    {
    templateUrl : 'sample.html',
    controller : 'SampleController'              
    }
    }
    })
});

app.controller('MainController', MainController);

function MainController($scope,$state)
{
    alert("This is MainController")

    $scope.getCategory=function()
    {
    $state.go('category');
    }


}

app.controller('TestController', TestController);

//TestController.$inject['dataservice'];

function TestController($scope, $state){


    $scope.data=[
     {
      "parentName": "George",
      "childName": "George Child1"          
     },
     {
      "parentName": "Folly",
      "childName": "FollyChild1"         
     },
     {
      "parentName": "Sally",
      "childName": "Sally Child1"          
     },

     {
      "parentName": "George",
      "childName": "GeorgChild2"          
     },
     {
      "parentName": "Folly",
      "childName": "FollyChild2"         
     },
     {
      "parentName": "Folly",
      "childName": "Infant Food"          
     },
     {
      "parentName": "Sally",
      "childName": "SallyChild2"          
     }
    ];

    $scope.selectedParent="Sally";
    $scope.selectedChild="SallyChild2";

    function onParentChange(parent){
      if(!parent){
    $scope.child = undefined;
      }
    }


    $scope.getValue=function()
    {
    alert("Call to Sample Controller")

    var currentState = $state.current.name;
    var targetState = 'category.subcategory';

    if(currentState === targetState)
      $state.go($state.current, {}, {reload: true});
    else
    $state.go(targetState);
    $state.go(".subcategory");

    //$state.go('category.subcategory');
    }
}


app.controller('SampleController', SampleController);

function SampleController($scope,$state)
{
    alert("This is SampleController")

}

index.html

<!DOCTYPE html>
<html ng-app="TestApp">

  <head>
    <link rel="stylesheet">
        <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular.min.js"></script>
        <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular-route.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-filter/0.5.8/angular-filter.js"></script>
        <script src="angular-ui-router.js"></script>    
        <script src="script.js"></script>
        <script src="angular-filter.js"></script>
  </head>

    <body ng-controller="MainController">
        <a href="#" ng-click="getCategory()">Click to Category</a>
        <div ui-view="body"></div>  
    </body>
</html>

category.html

  <div>    
    <hr>

    <div class="col-md-3"> 
      <form>
    <div class="form-group">
      <label for="exampleSelect1"><b>Parent</b></label>
      <select ng-model="selectedParent"
        ng-init="selectedParent = null"
        ng-change="onParentChange(selectedParent)"
        class="form-control" id="data">
        <option value="">--Select--</option>
        <option ng-repeat="(key,value) in data | orderBy:'parentName'| groupBy:'parentName'">{{key}}</option>           
      </select>
    </div>              
      </form>  
    </div>      
    <div class="col-md-3">      
      <form>    
    <div class="form-group">
      <label for="exampleSelect1"><b>Child Names</b></label>
      <select class="form-control" id="childnames" ng-model="child" 
        ng-disabled="!selectedParent"
        ng-options="data.childName for data in data| filter: {parentName:selectedParent} | removeWith:{childName : 'Infant Food'}" ng-change="getValue()">
        <option value="">--Select--</option>
      </select>
    </div>          

      </form>     
  </div>
    <div ui-view="subbody"></div>
  </div>



父母亲
--挑选--
{{key}}
子名称
--挑选--

sample.html

<div>
    Sample Controller
</div>


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