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ドロップダウン付きのAngularjsフィルターデータ

私はangularjsとjavascriptで少し新しいので、親切にしてください、私は2つのドロップダウンアイテム（Ionic Select）を持っており、どちらもサービスからのデータを保持しています。問題は、最初のドロップダウンリストで会社を選択した場合、その会社内の営業担当のみが他のドロップダウンリストに表示されるようにするために、フィルター処理する必要があるということです。

Angularjsのドキュメントに従って| filter: byIDを試してみましたが、これを行う正しい方法だとは思いません。

HTML：

<label class="item item-input item-select"">
    <div class="input-label">
      Company:
    </div>
    <select>
      <option ng-repeat="x in company">{{x.compname}}</option>
      <option selected>Select</option>      
    </select>
  </label>
   <div class="list">
  <label class="item item-input item-select">
    <div class="input-label">
      Rep:
    </div>
    <select>
       <option ng-repeat="x in represent">{{x.repname}}</option>
      <option selected>Select</option>
    </select>
  </label>

JavaScript：

/*=========================Get All Companies=========================*/
 $http.get("http://localhost:15021/Service1.svc/GetAllComp")
      .success(function(data) {

        var obj = data;
        var SComp = [];


    angular.forEach(obj, function(index, element) {

    angular.forEach(index, function(indexN, elementN) {        

        SComp.Push({compid: indexN.CompID, compname: indexN.CompName});

        $scope.company = SComp;
    });    

    });          
            })
/*=========================Get All Companies=========================*/

/*=========================Get All Reps=========================*/
 $http.get("http://localhost:15021/Service1.svc/GetAllReps")
      .success(function(data) {

        var obj = data;
        var SReps = [];


    angular.forEach(obj, function(index, element) {

    angular.forEach(index, function(indexN, elementN) {        

        SReps.Push({repid: indexN.RepID, repname: indexN.RepName, fkc :indexN.fk_CompID});

        $scope.represent = SReps;
    });    

    });          
            })
/*=========================Get All Reps=========================*/
javascriptangularjsionic-frameworkionic
7
user2413453

あなたは私の解決策のようにこの問題を解決するかもしれません：あなたの問題のような私の解決策。最初に地区リストを表示し、選択された地区に従ってタナリストを表示します。 filter式を使用する

HTML内：

<div>
        <form class="form-horizontal">
            <div class="form-group">
                <div class="col-md-3"><label><i class="fa fa-question-circle fa-fw"></i> District List</label></div>
                <div class="col-md-4">
                    <select class="form-control" ng-model="selectedDist" ng-options="district.name for district in districts">
                        <option value="">Select</option>
                    </select>
                </div>
            </div>
            <div class="form-group">
                <div class="col-md-3"><label><i class="fa fa-question-circle fa-fw"></i> Thana List</label></div>
                <div class="col-md-4">
                    <select class="form-control" ng-model="selectedThana" ng-options="thana.name for thana in thanas | filter: filterExpression">
                        <option value="">Select</option>
                    </select>
                </div>
            </div>
        </form>
    </div>

コントローラ内：

            $scope.selectedDist={};
            $scope.districts = [
                {id: 1, name: 'Dhaka'},
                {id: 2, name: 'Goplaganj'},
                {id: 3, name: 'Faridpur'}
            ];

            $scope.thanas = [
                {id: 1, name: 'Mirpur', dId: 1},
                {id: 2, name: 'Uttra', dId: 1},
                {id: 3, name: 'Shahabag', dId: 1},
                {id: 4, name: 'Kotalipara', dId: 2},
                {id: 5, name: 'Kashiani', dId: 2},
                {id: 6, name: 'Moksedpur', dId: 2},
                {id: 7, name: 'Vanga', dId: 3},
                {id: 8, name: 'faridpur', dId: 3}
            ];
            $scope.filterExpression = function(thana) {
                return (thana.dId === $scope.selectedDist.id );
            };

NB：ここにfilterExpressionは、選択された地区IDがdIdと等しいときに値を返すカスタム関数ですタナ。

11
Shaishab Roy
var app = angular.module('myApp', []);
app.controller('customersCtrl', function($scope,$window, $http) {
   $scope.myFunc = function(x) {
                $scope.name = x.Name;
                $scope.country = x.Country;
                $scope.city = x.City;
                $scope.x = x;
                $("#myModal").modal();
   };
   
   $scope.saveData = function(x) {
                if(x == ''){
                        x = angular.copy($scope.names[0]);
                        x.Name = $scope.name;
                        x.Country = $scope.country;
                        x.City = $scope.city;
                        $scope.names.Push(x);
                }
                else{
                        x.Name = $scope.name;
                        x.Country = $scope.country;     
                        x.City = $scope.city;   
                }
        };
  
  $scope.newData = function() {
                $scope.name = "";
                $scope.country = "";
                $scope.city = "";
                $scope.x = "";
                $("#myModal").modal();
   };

        $scope.myDelete = function(x) {
                if(x.Name=='' && x.Country=='' && x.City==''){
                        var index = $scope.names.indexOf(x);
                        $scope.names.splice(index, 1);
                }
                else{
                        var deletedata = $window.confirm('are you absolutely sure you want to delete?');
                        if (deletedata) {
                        alert('i am');
                                var index = $scope.names.indexOf(x);
                                $scope.names.splice(index, 1);    
                        }
                }
        };
        $scope.filterExpression = function(x) {
                                //alert($scope.country.id);
                return (x.countryId === $scope.country.countryId );
            };
                        
   $scope.names =  [{"Name":"Alfreds Futterkiste","City":"","Country":""},{"Name":"Ana Trujillo Emparedados y helados","City":"","Country":""}]
   $scope.countryList = [
        {countryName : "Pakistan", countryId : 1},
        {countryName : "UK", countryId : 2},
        {countryName : "Sweden", countryId : 3}
    ];
        $scope.cityList = [
        {cityName : "Karachi", cityId : 1, countryId:1},
        {cityName : "London", cityId : 2, countryId:11},
        {cityName : "Sweden City", cityId : 3, countryId:3}
    ];
});
<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
</head>
<body>
<style>
.table tr {
    cursor: pointer;
}
</style>
<div class="container" ng-app="myApp" ng-controller="customersCtrl">
 <pre>{{names}}</pre>
  <h2>Hover Rows</h2>
  <p>The .table-hover class enables a hover state on table rows:</p>            
  <table class="table table-hover">
    <thead>
      <tr>
        <th>Sr.No</th>
        <th>Name</th>
        <th>Country</th>
                 <th>City</th>
                <th>Action</th>
      </tr>
    </thead>
    <tbody>
      <tr ng-repeat="x in names" ng-dblclick="myFunc(x)" >
        <td>{{ $index + 1 }}</td>
                <td>{{ x.Name }}</td>
                <td>{{ x.Country.countryName }}</td>
                <td>{{ x.City.cityName }}</td>
                <td><span class="glyphicon glyphicon-remove" ng-click="myDelete(x)"></span></td>
         </tr>
        </tbody>
        <tfoot>
                <tr ng-click="newData()">
                        <td  colspan="4">
                        </td>
                        <td>
                                <span class="glyphicon glyphicon-plus" ng-click="newData()" cursor="" ></span>
                        </td>
                </tr>
        </tfoot>
        
  </table>
  
    <!-- Modal -->
  <div class="modal fade" id="myModal" role="dialog">
    <div class="modal-dialog">
    
      <!-- Modal content-->
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal">&times;</button>
          <h4 class="modal-title" ng-if="x!=''">Edit Record</h4>
                  <h4 class="modal-title" ng-if="x==''">Save Record</h4>
        </div>
        <div class="modal-body">
        <div class="form-group">
                        <label for="name">Name:</label>
                        <input type="text" class="form-control" id="name" ng-model="name">
                </div>
                <div class="form-group">
                        <label for="country">Country:</label>
                        <!-- <input type="text" class="form-control" id="country" ng-model="country"> -->
                        <select class="form-control" ng-model="country" ng-options="x.countryName for x in countryList"></select>
                </div>
                <div class="form-group">
                        <label for="country">City:</label>
                        <select class="form-control" ng-model="city" ng-options="x.cityName for x in cityList | filter:filterExpression"></select>
                </div>
                <input type="hidden" ng-model="x" />
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" data-dismiss="modal" ng-click="saveData(x)">Save</button>
                  <button type="button" class="btn btn-default" data-dismiss="modal" ng-click="myDelete(x)" ng-if="x!=''">Delete</button>
        </div>
      </div>
      
    </div>
  </div>
</div>
</body>
</html>
0
raza