Unable to Insert Row using Server Editing

[Tom]

I'm working on my first implementation of your Grid control and I have everything working correctly except for the Insert command.  I'm working from your demo example. My View is 

@model IQueryable<CdDemo.Models.Driver>

@{
    ViewBag.Title = "List of Drivers";
}

<h2>Index</h2>
<div style="width: 500px">
@(Html.Telerik().Grid(Model)
        .Name("Grid")
        .ToolBar(commands => commands.Insert())
        .DataKeys(keys => keys.Add(c => c.DriverId))
        .DataBinding(dataBinding => dataBinding.Server()
            .Select("Index", "Drivers")
            .Insert("Insert", "Drivers")
            .Update("Save", "Drivers")
            .Delete("Delete", "Drivers"))
        .Columns(columns =>
        {
            columns.Bound(o => o.DriverName).Width(100);
            columns.Bound(o => o.DriverActive).Width(50);
            columns.Command(commands =>
            {
                commands.Edit();
                commands.Delete();
            });
        })
        .Editable(editing => editing.Mode(GridEditMode.PopUp))
        .Sortable()
        .Pageable()
        .Filterable()
)</div>

When I press the Add New Row button, it calls the Index function in the controller -

public ActionResult Index()
{
    IEnumerable<Driver> list = RepositoryContainer.DriverRepository.AllList();
    return View(list);
}

I then get the following error message -

Server Error in '/' Application.

---

The method or operation is not implemented.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NotImplementedException: The method or operation is not implemented.

Source Error: 

Line 7: <h2>Index</h2> Line 8: <div style="width: 500px"> Line 9: @(Html.Telerik().Grid(Model) Line 10: .Name("Grid") Line 11: .ToolBar(commands => commands.Insert())

Source File: c:\Users\Tom\Documents\Visual Studio 2010\Projects\CdDemo\CdDemo\Views\Drivers\Index.cshtml    Line: 9 

Stack Trace: 

[NotImplementedException: The method or operation is not implemented.] Telerik.Web.Mvc.UI.HtmlFragment.AddClass(String[] classes) +54 Telerik.Web.Mvc.UI.Html.GridEditRowBuilderDecorator.ApplyDecoration(IHtmlNode htmlNode) +88 Telerik.Web.Mvc.UI.Html.GridRowBuilderDecoratorBase.CreateRow() +146 Telerik.Web.Mvc.UI.Html.GridDataSectionBuilder.CreateBody(IEnumerable`1 rowBuilders) +150 Telerik.Web.Mvc.UI.Html.GridDataSectionBuilder.CreateBody(GridRenderingData renderingData) +263 Telerik.Web.Mvc.UI.Html.GridHtmlBuilder.CreateBody(GridRenderingData renderingData) +48 Telerik.Web.Mvc.UI.Html.GridHtmlBuilder.AppendData(IHtmlNode div, GridRenderingData renderingData) +115 Telerik.Web.Mvc.UI.Html.GridHtmlBuilder.CreateGrid(IDictionary`2 htmlAttributes, GridFunctionalData functionalData, GridRenderingData renderingData) +115 Telerik.Web.Mvc.UI.Grid`1.WriteHtml(HtmlTextWriter writer) +1328 Telerik.Web.Mvc.UI.ViewComponentBase.ToHtmlString() +121 Telerik.Web.Mvc.UI.ViewComponentBuilderBase`2.ToHtmlString() +56 Telerik.Web.Mvc.{Dynamic}.GridBuilder`1[[CdDemo.Models.Driver, CdDemo, Version=2011.1.224.0\, Culture=neutral\, PublicKeyToken=null\]\].IHtmlString.ToHtmlString() +30 System.Web.HttpUtility.HtmlEncode(Object value) +38 System.Web.WebPages.WebPageBase.Write(Object value) +64 ASP._Page_Views_Drivers_Index_cshtml.Execute() in c:\Users\Tom\Documents\Visual Studio 2010\Projects\CdDemo\CdDemo\Views\Drivers\Index.cshtml:9 System.Web.WebPages.WebPageBase.ExecutePageHierarchy() +207 System.Web.Mvc.WebViewPage.ExecutePageHierarchy() +81 System.Web.WebPages.StartPage.RunPage() +19 System.Web.WebPages.StartPage.ExecutePageHierarchy() +65 System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) +76 System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance) +220 System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer) +115 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +303 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +13 System.Web.Mvc.<>c__DisplayClass1c.<InvokeActionResultWithFilters>b__19() +23 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +260 System.Web.Mvc.<>c__DisplayClass1e.<InvokeActionResultWithFilters>b__1b() +19 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +177 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343 System.Web.Mvc.Controller.ExecuteCore() +116 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10 System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37 System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21 System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62 System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50 System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7 System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8862461 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

Everything I'm doing seems consistent with your examples.  Can you suggestion what I'm doing in error.