Telerik MVC Batch editing

View 

@(Html.Kendo().Grid<Kendo.Mvc.Examples.Models.ProductViewModel>()    
    .Name("Grid")    
    .Columns(columns => {        
        columns.Bound(p => p.ProductName);
        columns.Bound(p => p.UnitPrice).Width(140);
        columns.Bound(p => p.UnitsInStock).Width(140);
        columns.Bound(p => p.Discontinued).Width(100);
        columns.Command(command => command.Destroy()).Width(110);
    })
    .ToolBar(toolbar => {
        toolbar.Create();
        toolbar.Save();        
    })
    .Editable(editable => editable.Mode(GridEditMode.InCell))
    .Pageable()
    .Navigatable()
    .Sortable()
    .Scrollable()
    .DataSource(dataSource => dataSource        
        .Ajax()         
        .Batch(true)
        .PageSize(20)
        .ServerOperation(false)                
        .Events(events => events.Error("error_handler"))
        .Model(model => model.Id(p => p.ProductID))
        .Create("Editing_Create", "Grid")
        .Read("Editing_Read", "Grid")
        .Update("Editing_Update", "Grid")
        .Destroy("Editing_Destroy", "Grid")
    )
)
<script type="text/javascript">
    function error_handler(e) {    
        if (e.errors) {
            var message = "Errors:\n";
            $.each(e.errors, function (key, value) {
                if ('errors' in value) {
                    $.each(value.errors, function() {
                        message += this + "\n";
                    });
                }
            });        
            alert(message);
        }
    }
</script>

Controller

 public ActionResult Editing_Read([DataSourceRequest] DataSourceRequest request)
        {
            return Json(productService.Read().ToDataSourceResult(request));
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Create([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<ProductViewModel> products)
        {
            var results = new List<ProductViewModel>();

            if (products != null && ModelState.IsValid)
            {
                foreach (var product in products)
                {
                    productService.Create(product);
                    results.Add(product);
                }
            }

            return Json(results.ToDataSourceResult(request, ModelState));
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Update([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<ProductViewModel> products)
        {
            if (products != null && ModelState.IsValid)
            {
                foreach (var product in products)
                {
                    productService.Update(product);
                }
            }

            return Json(products.ToDataSourceResult(request, ModelState));
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Editing_Destroy([DataSourceRequest] DataSourceRequest request, [Bind(Prefix = "models")]IEnumerable<ProductViewModel> products)
        {            
            if (products.Any())
            {
                foreach (var product in products)
                {
                    productService.Destroy(product);
                }
            }

            return Json(products.ToDataSourceResult(request,ModelState));
        }