public ActionResult Articles_Read(int Id, [DataSourceRequest]DataSourceRequest request)
        {
            return Json(GetArticles()
                .Where(article => article.ProductId == Id)
                .ToDataSourceResult(request), JsonRequestBehavior.AllowGet);
        }

        private static IEnumerable<ArticleViewModel> GetArticles()
        {
            var db = new EnzoDatabaseEntities();
            return db.Articles.Select(p => new ArticleViewModel
            {
                Id = p.Id,
                ArticleName = p.ArticleName,
                ProductId = p.ProductId
            });
        }

@(Html.Kendo().Grid<EnzoWayApplication1.Models.ProductViewModel>()
      .Name("grid")
      .Columns(columns =>
      {
          columns.Bound(product => product.Name).Title("Наименование");
          columns.Command(commands =>
          {
              commands.Edit();
              commands.Destroy();
          }).Title("Действия").Width(215);         
      })
      .ToolBar(toolbar => toolbar.Create())
      .Editable(editable => editable.Mode(GridEditMode.InLine))
      .Pageable(pager => pager.PageSizes(new int[] {20, 50, 100}))
      .Scrollable(scrollable => scrollable.Height(430))
      .Groupable()
      .Sortable()
      .ClientDetailTemplateId("template")
      .Selectable(selectable => selectable
            .Mode(GridSelectionMode.Multiple))
      .ColumnMenu()
      .DataSource(dataSource => dataSource
            .Ajax()
            .Model(model =>
                    {
                        model.Id(client => client.Id);
                        model.Field(client => client.Id).Editable(false);
                    })
                    .Create(create => create.Action("Products_Create", "Products"))
                    .Read(read => read.Action("Products_Read", "Products"))
                    .Update(update => update.Action("Products_Update", "Products"))
                    .Destroy(destroy => destroy.Action("Products_Destroy", "Products"))
                  )
      .Filterable()
)

<script id="template" type="text/kendo-tmpl">
    @(Html.Kendo().Grid<EnzoWayApplication1.Models.ArticleViewModel>()
            .Name("grid_#=ProductId#")
            .Columns(columns =>
            {
                columns.Bound(o => o.ArticleName).Title("Артикул");
            })
            .DataSource(dataSource => dataSource
                .Ajax()
                .PageSize(10)
                .Read(read => read.Action("Articles_Read", "Products", new { Id = "#=Id#" }))
            )
            .Pageable()
            .Sortable()
            .ToClientTemplate()
    )
</script>
<script>
    function dataBound() {
        this.expandRow(this.tbody.find("tr.k-master-row").first());
    }
</script>