Wijmo 5 - FlexGrid row height

HTML

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
<script src="http://cdn.wijmo.com/5.latest/controls/wijmo.min.js"></script>
<link rel="stylesheet" href="http://cdn.wijmo.com/5.latest/styles/wijmo.min.css">
<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>
<body ng-app="app" ng-controller="appCtrl">
    <br />
    <wj-flex-grid control="FlexGrid" style="max-height:150px" selection-mode="Row" is-read-only="false" items-source="dummyDS" allow-add-new="true" allow-delete="true" item-formatter="itemFormatter">
        <wj-flex-grid-column header="NO" binding="number" format="d" width="85" align="left">
            <wj-flex-grid-cell-template cell-type="CellEdit">
                <wj-input-number value="$value" step="1" format="d" min="1"></wj-input-number>
            </wj-flex-grid-cell-template>
        </wj-flex-grid-column>
        <wj-flex-grid-column header="Country" binding="country" width="*">
            <wj-flex-grid-cell-template cell-type="CellEdit">
                <wj-auto-complete items-source="countries" selected-value="$value"></wj-auto-complete>
            </wj-flex-grid-cell-template>
        </wj-flex-grid-column>
        <wj-flex-grid-column header="Check" binding="check" width="*" align="center">
            <input type="checkbox" class="" />
        </wj-flex-grid-column>
    </wj-flex-grid>
</body>

JavaScript

// define app, include Wijmo 5 directives
 var app = angular.module('app', ['wj']);

 // controller
 app.controller('appCtrl', function ($scope) {

     $scope.dummyDS = [

     ];
     $scope.countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'];

     //$scope.itemFormatter = function (panel, r, c, cell) {
     //    if (panel.cellType == wijmo.grid.CellType.Cell) {
     //        var flex = panel.grid;
     //        //set height for all rows
     //        flex.rows[r].height = 20;
     //    }
     //};
 });