public class TestViewModel
 {
     public List<string> SelectedItems { get; set; } = new List<string>();
     public List<string> AvailableItems { get; set; } = new List<string>();
 }

public class TestController : Controller
{
    public ActionResult Index()
    {
        var model = new TestViewModel
        {
            AvailableItems = ["Option A", "Option B", "Option C"],
            SelectedItems  = []
        };
        return View(model);
    }

    [HttpPost]
    public ActionResult Index(TestViewModel model)
    {
        model.AvailableItems = ["Option A", "Option B", "Option C"];
        return View(model);
    }
}

@(Html.Kendo().Form<TestViewModel>()
    .Name("testForm")
    .HtmlAttributes(new { method = "post", id = "testForm" })
    .Items(items =>
    {
        items.AddGroup()
             .Label("Demo")
             .Items(g =>
             {
                 g.Add().Field(m => m.SelectedItems)
                      .Label("Pick Items")
                      .Editor(e => e.MultiSelect()
                          .BindTo(Model.AvailableItems)
                          .Placeholder("Select…")
                      );
             });
    })
)

            @(Html.Kendo().Button()
                .Name("AddNew")
                .Icon("plus")
                .FillMode(ButtonFillMode.Solid)
                .Rounded(Rounded.Medium)
                .HtmlAttributes(new { @class = "add-button" })
                .Events(e=>e.Click("addNewClick"))
            )

            @(Html.Kendo().ListView<MyNamespace.Models.ItemComment>()
                .Name("listView")
                .TagName("div")
                .ClientTemplateId("commentListTemplate")
                .Editable()
                .DataSource(dataSource => dataSource
                    .Model(model => model.Id(comment => comment.CommentID))
                    .Read(read => read.Action("Comments_Read", "Comment").Data("getCommentReadParameters"))
                    .Update(update => update.Action("Comments_Update", "Comment"))
                    .Destroy(destroy => destroy.Action("Comments_Delete", "Comment"))
                    .Events(e => e.Error("epic.error.kendoErrorHandler"))
                )
                .Events(e => e.DataBound("onCommentsDataBound"))
                .Events(e => e.Remove("deleteConfirmation"))

            )

<script type="text/x-kendo-tmpl" id="commentListTemplate">
     <div class="k-card">
            <div class="k-card-body k-card-horizontal k-vbox k-column" style="margin:0;padding:4px 4px 0">
                <img class='k-card-image' style="height:16px; margin-right:5px;" src="@Url.Content("~/Content/assets/images/blue-person.png")">
                <div class='commentHeader'>
                    <h6 class='k-card-subtitle'>#= UserID #</h6>
                    <div class="edit-buttons">
                        <a role="button" class="k-button k-button-solid-base k-button-solid k-button-md k-rounded-md k-edit-button" href="\\#">#= kendo.ui.icon({ icon: 'pencil' }) #</a>
                        <a role="button" class="k-button k-button-solid-base k-button-solid k-button-md k-rounded-md k-delete-button" href="\\#">#= kendo.ui.icon({ icon: 'x' }) #</a>
                    </div>
                    <p>
                        #: Comment #
                    </p>
                </div>
            </div>
    </div>
</script>

<script type="text/javascript">

    function onCommentsDataBound() {
        if (this.dataSource.data().length == 0) {
            $("#listView").append("<h3 style='padding: 2px 4px 0;'>No comments</h3>");
        }
    }

    function addNewClick(e) {
        var listView = $("#listView").data("kendoListView");
        listView.add();
        e.preventDefault();
    }

    function deleteConfirmation(event) {

        if (!confirm("Are you sure you want to delete this comment?"))
            event.preventDefault();
    }

</script>

@(Html.Kendo().Grid<LewisTestProject.Models.Customer>()
  .Name("grid")
  .DataSource(dataSource => dataSource
      .Ajax()
      .Model(model => {
          model.Id(p => p.CustomerID);
          model.Field(p => p.CustomerID).Editable(false);
      })
      .PageSize(18)
      .Read(read => read.Action("Customers_Read", "Customer"))
      .Create(create => create.Action("Customers_Create", "Customer"))
      .Update(update => update.Action("Customers_Update", "Customer"))
      .Destroy(destroy => destroy.Action("Customers_Destroy", "Customer"))

   )
  .Columns(columns =>
  {
      columns.Bound(order => order.CustomerID);
      columns.Bound(order => order.CompanyName);
      columns.Bound(order => order.ContactName);
      columns.Bound(order => order.ContactTitle);
      columns.Bound(order => order.Address);
      columns.Bound(order => order.City);
      columns.Bound(order => order.Region);
      columns.Bound(order => order.PostalCode);
      columns.Bound(order => order.Country);
      columns.Bound(order => order.Phone);
      columns.Bound(order => order.Fax);
      columns.Command(command =>
      {
          command.Edit();
          command.Destroy();
      }
      ).Title("Actions");
  })
  .ToolBar(toolbar => {
      toolbar.Create();
      toolbar.Search();
  })
  .Pageable()
  .Sortable()
  .ClientDetailTemplateId("template")
  .Events(events => events.DataBound("dataBound"))
  .Editable(e => e.Mode(GridEditMode.InLine))
 )

<script id="template" type="text/kendo-tmpl">
@(Html.Kendo().TabStrip()
    .Name("tabStrip_#=CustomerID#")
    .SelectedIndex(0)
    .Animation(animation => animation.Open(open => open.Fade(FadeDirection.In)))
    .Items(items =>
    {
        items.Add().Text("Orders").Content(@<text>
            @(Html.Kendo().Grid<LewisTestProject.Models.OrderViewModel>()
                .Name("grid_#=CustomerID#") // template expression, to be evaluated in the master context
                .Columns(columns =>
                {
                    columns.Bound(o => o.CustomerID);
                    columns.Bound(o => o.OrderID).Title("ID").Width(100);
                })
                .DataSource(dataSource => dataSource
                    .Ajax()
                    .PageSize(5)
                    .Read(read => read.Action("OrdersDetail_Read", "Customers", new { customerID = "#=CustomerID#" }))
                )
                .Pageable()
                .Sortable()
                .ToClientTemplate()
                )
        </text>
        );
        //items.Add().Text("Contact Information").Content(
        //    "<div class='employee-details'>" +
        //        "<ul>" +
        //            "<li><label>Country:</label>#= Country #</li>" +
        //            "<li><label>City:</label>#= City #</li>" +
        //            "<li><label>Address:</label>#= Address #</li>" +
        //            "<li><label>Home Phone:</label>#= Phone #</li>" +
        //        "</ul>" +
        //    "</div>"
        //);
    })
    .ToClientTemplate()
    )
</script>