Wijmo 5 [Retain grid row selection on Data refresh]

Selected row retain on grid data refreshed.

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<script src="http://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.input.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.grid.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/interop/angular/wijmo.angular.min.js"></script>
 <div ng-app="myApp" ng-controller="appCtrl">
        <button class="btn btn-default" ng-click="refreshGrid()">Refresh</button>
        <wj-flex-grid items-source="data"  control="flex" selection-mode="ListBox"></wj-flex-grid>
    </div>

JavaScript

var app = angular.module('myApp', ['wj']);
        app.controller('appCtrl', function ($scope) {

            var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(',');
            var data = [];
            var getData = function (count) is

                for (var i = 0; i < count; i++) {
                    data.push({
                        id: i,
                        country: countries[i % countries.length],
                        date: new Date(2014, i % 12, i % 28),
                        amount: Math.random() * 10000,
                        active: i % 4 === 0
                    });
                }
                return data;
            };
           
            $scope.data = new wijmo.collections.CollectionView(getData(5));
            $scope.refreshGrid = function () {
                getData(10);
                $scope.data.refresh();

            }

        });