选择多个记录进行删除

Question

这里我正在尝试删除多条记录，但我不明白为什么它在我正在进行时没有约束foreach

Controller.Js

 $scope.DeleteAll = function (CustDelete) {
                    alert('delete')
                    var itemList = [];
                    angular.forEach(CustDelete, function (value, key) {
                        itemList.push(CustDelete[key].selected);
                    })
                }

表格

<div ng-controller="UserCtrls">
   <input type="button" value="Delete" ng-model="Del" ng click="DeleteAll(CustDelete)" />

     <table class="table table-responsive table-bordered">
                    <tr>
                        <td><b>CheckAll
                            <input type="checkbox" ng-model="chk" />
                            </b></td>
     <td><b>UserId</b></td> 
     </tr>
      <tr ng-repeat="ee in UserDatainfos">
                        <td>
                            <input type="checkbox" ng-checked="chk" id="chk1" ng-true-value="{{ee.UserId}}" ng-false-value="" ng-model="ee.selected" />
                        </td>
                        <td>{{ee.UserId}}</td>
    </tr>
</div>