选择Dropdown在angularjs中传递未定义的值？

Question

在这里，我已经检查了＆＃34;三星Galaxy S6＆＃34;在那个复选框列表。一个下拉列表将在检查三星Galaxy S6之后。如果选择20％Flat在三星Galaxy S6之后下降提交我应该得到20％持平三星Galaxy S6提供id de34575.here我得到未定义的价值.i已在下面添加了我的代码。demo

＆＃13;

＆＃13;

function Test1Controller($scope) {
  var storeid = window.localStorage.getItem("storeid");
    var serverData = ["Samsung Galaxy Note", "Samsung Galaxy S6", "Samsung Galaxy Avant","Samsung Galaxy Young"];
    $scope.items= [] ;

    for(var i=0;i<serverData.length;i++)
    {
        var modal = {
        name:serverData[i],
        selected:false
        };        
        $scope.items.push(modal);        
    }
    //----------------------------Our Shop Offers----------------------------------------
    $scope.offers = [
    {
        id: "as23456",
        Store: "samsung",
        Offer_message:"1500rs off",
        modalname: "Samsung Galaxy Young"       

    },{
        id: "de34575",
        Store: "samsung",
        Offer_message:"20% Flat on Samsung Galaxy S6",
        modalname: "Samsung Galaxy S6"       

    },
    ]
    //-----------------------------------------------------------------------------------
     $scope.check = function()
	 
     {
	 console.log($scope.Offer);
	 
         var checkedItems = [];
            for(var i=0;i<$scope.items.length;i++)
            {
                  if($scope.items[i].selected){
                      checkedItems.push($scope.items[i].name);
                    }
            }
              console.log(checkedItems) ; 
     }
$scope.selection = [];

      $scope.toggleSelection = function toggleSelection(item) {
$scope.gotOffers=[];
      var idx = $scope.selection.indexOf(item);

      // is currently selected
      if (idx > -1) {
        $scope.selection.splice(idx, 1);
      }

      // is newly selected
      else {
        $scope.selection.push(item);
      }

        for(var i=0;i<$scope.selection.length;i++){
          for(var j=0;j<$scope.offers.length;j++){
            console.log($scope.selection[i].name  +"   "+ $scope.offers[j].modalname)
            if( $scope.selection[i].name  == $scope.offers[j].modalname){
              var idx = $scope.gotOffers.indexOf($scope.offers[j].Offer_message);
              if(idx == -1){
                console.log("inside idx")
                $scope.gotOffers.push($scope.offers[j].Offer_message);
              }

            }
          }

        }
		
    };


}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.1.5/angular.min.js"></script>

<div ng-app>
  <div ng-controller="Test1Controller" >
    <div ng-repeat="item in items">
      <input type="checkbox" ng-model="item.selected"  ng-checked="selection.indexOf(item) > -1" ng-click="toggleSelection(item)"/> {{item.name}}
    </div>
    <select ng-show="gotOffers.length > 0" ng-model="offer">
      <option ng-repeat="offer in gotOffers"  ng-value="offer.id">{{offer}}</option>
    </select>

      <input type="button" name="submit" value="submit" ng-click="check()"/>
  </div>
</div>

＆＃13;

＆＃13;

＆＃13;

Answer 1

<强>角

<ul>
  <li>HOVER ME</li>
</ul>

<ol>
  <li>HOVER ME</li>
</ol>

<强> HTML

function Test1Controller($scope) {
  var storeid = window.localStorage.getItem("storeid");
    var serverData = ["Samsung Galaxy Note", "Samsung Galaxy S6", "Samsung Galaxy Avant","Samsung Galaxy Young"];
    $scope.items= [] ;

    for(var i=0;i<serverData.length;i++)
    {
        var modal = {
        name:serverData[i],
        selected:false
        };        
        $scope.items.push(modal);        
    }
    //----------------------------Our Shop Offers----------------------------------------
    $scope.offers = [
    {
        id: "as23456",
        Store: "samsung",
        Offer_message:"1500rs off",
        modalname: "Samsung Galaxy Young"       

    },{
        id: "de34575",
        Store: "samsung",
        Offer_message:"20% Flat on Samsung Galaxy S6",
        modalname: "Samsung Galaxy S6"       

    },
    ]
    //-----------------------------------------------------------------------------------
     $scope.check = function()

     {


         var checkedItems = [];
         console.log($scope.offerSelected)
            for(var i=0;i<$scope.items.length;i++)
            {
                  if($scope.items[i].selected){
                      checkedItems.push($scope.items[i].name);
                    }
            }
              console.log(checkedItems) ; 
     }
$scope.selection = [];

      $scope.toggleSelection = function toggleSelection(item) {
$scope.gotOffers=[];
      var idx = $scope.selection.indexOf(item);

      // is currently selected
      if (idx > -1) {
        $scope.selection.splice(idx, 1);
      }

      // is newly selected
      else {
        $scope.selection.push(item);
      }

        for(var i=0;i<$scope.selection.length;i++){
          for(var j=0;j<$scope.offers.length;j++){
            console.log($scope.selection[i].name  +"   "+ $scope.offers[j].modalname)
            if( $scope.selection[i].name  == $scope.offers[j].modalname){
              var idx = $scope.gotOffers.indexOf($scope.offers[j].Offer_message);
              if(idx == -1){
                console.log("inside idx")
                $scope.gotOffers.push($scope.offers[j]);
              }

            }
          }

        }
        console.log($scope.offers);

    };


}

请参阅fiddle

另请参阅angular-select

<强>释

1. 推送整个<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.1.5/angular.min.js"></script> <div ng-app> <div ng-controller="Test1Controller" > <div ng-repeat="item in items"> <input type="checkbox" ng-model="item.selected" ng-checked="selection.indexOf(item) > -1" ng-click="toggleSelection(item)"/> {{item.name}} </div> <select ng-show="gotOffers.length > 0" ng-model="offerSelected"> <option ng-repeat="offer in gotOffers" value="{{offer.id}}">{{offer.Offer_message}}</option> </select> <input type="button" name="submit" value="submit" ng-click="check()"/> </div> </div> 对象，而不是仅推送offer数组中的Offer_message来提取ID。
2. gotOffers应位于ng-model标记上，而不在select标记中。