Custom Grid inline editing with dropdownlist bound

View 

@model IEnumerable<PurchaseModel>

@(Html.Kendo().Grid<PurchaseModel>(Model)
    .Name("grid")
    .Columns(columns =>
        {
            columns.Bound(x => x.flagPartId).Hidden();
            columns.Bound(p => p.PartCode).Title("Part<font color='red'>*</font>").ClientTemplate("#if (PartCode == null) {# #=''# #} else {# #=PartCode# #}#").Width(150);
            columns.Bound(p => p.PartName).Title("Part Name<font color='red'>*</font>").ClientTemplate("#if (PartName == null) {# #=''# #} else {# #=PartName# #}#").Width(150);
            columns.Bound(p => p.PartCategoryID).Title("Part Category").Width(130).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.Bound(p => p.Quantity).Title("Quantity<font color='red'>*</font>").Width(90).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.Bound(p => p.Cost).Title("Cost per Unit<font color='red'>*</font>").Width(100).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.ForeignKey(p => p.Condition, (System.Collections.IEnumerable)ViewData["ddlCondition"], "Value", "Value").Title("Condition <font color='red'>*</font>").Width(100).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.Bound(p => p.PartSerialNo).Title("Serial Number").Width(120).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.Bound(itm => itm.WStatus).Hidden(true);
            columns.Template(@<text></text>).ClientTemplate(@"<input name='name#=renderNumberYes()#' type='radio' value='1' #= WStatus=='true' ? checked='checked':'' # />Yes
                            <input name='name#=renderNumberNo()#' type='radio' value='0' #= WStatus=='false' ? checked='checked':'' # />No
                            ").HeaderTemplate("Warranty Provided").Width(150);
            columns.Bound(p => p.Warranty).Title("Warranty Period").Width(150).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.ForeignKey(p => p.WarrantyType, (System.Collections.IEnumerable)ViewData["ddlUnit"], "Value", "Text").Title("Units").Width(90).Filterable(ftb => ftb.Extra(false).Cell(cell => cell.Operator("contains")));
            columns.Command(command => command.Destroy()).Width(90);
        })
        .ToolBar(toolBar =>
          {
              toolBar.Create();
              toolBar.Save();
          })
          .Editable(editable => editable.Mode(GridEditMode.InCell))
          .Events(even => even.Save("onSavePart").Edit("edit"))
          .Pageable(pager => pager.PageSizes(new int[] { 10, 20, 50 }))
          .Navigatable()
          .Scrollable(s => s.Height("auto"))
          .DataSource(dataSource => dataSource
          .Ajax()
          .ServerOperation(false)
          .Events(events => events.Error("error_handler").RequestEnd("onRequestEnd"))
          .Model(model =>
          {
              model.Id(p => p.PartDetailID);
              model.Field(p => p.PartCode);
              model.Field(p => p.WarrantyStatus).Editable(false);
              model.Field(p => p.Condition).DefaultValue("NEW");
              model.Field(p => p.Warranty);
              model.Field(p => p.WarrantyType).DefaultValue("Day(s)");
          })
         .PageSize(10)
         .Read(read => read.Action("EditingCustom_Read", "Purchase"))
         .Create(create => create.Action("EditingCustom_Create", "Purchase"))
         .Update(update => update.Action("EditingCustom_Update", "Purchase"))
         .Destroy(destroy => destroy.Action("EditingCustom_Destroy", "Purchase"))
         .Batch(true)
         )
    )


2 editor template
@model string

@(Html.Kendo().DropDownListFor(m => m)
.Name("PartCode")
        .AutoBind(false)
        .Filter("startswith")
        .MinLength(1)
       // .Suggest(true)
        .DataTextField("PartCode")
        .DataValueField("PartCode")
        //.BindTo((System.Collections.IEnumerable)ViewData["ddlPart"])
        .DataSource(dataSource =>
        {
            dataSource.Read(read => read.Action("BindPartCode", "Purchase"))
                    .ServerFiltering(false);
        })
       
)
@Html.ValidationMessageFor(m => m)

===============================

@model string

@(Html.Kendo().DropDownListFor(m => m)

.Name("PartName")

        .AutoBind(false)

        .Filter("startswith")

        .MinLength(1)

       // .Suggest(true)

        .DataTextField("PartName")

        .DataValueField("PartName")

        //.BindTo((System.Collections.IEnumerable)ViewData["ddlPart"])

        .DataSource(dataSource =>

        {

            dataSource.Read(read => read.Action("BindPartCode", "Purchase"))

                    .ServerFiltering(false);

        })

        

)

@Html.ValidationMessageFor(m => m)

Model Value declaration 

        [DisplayName("Part Code")]

        [UIHint("PartCode")]

        public string PartCode { get; set; }

        [DisplayName("Part Name")]

        [UIHint("PartName")]

        public string PartName { get; set; }

Controller :

 public ActionResult EditingCustom_Read([DataSourceRequest] DataSourceRequest request)

        {

            return Json(model.ToDataSourceResult(request), JsonRequestBehavior.AllowGet);

        }

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult EditingCustom_Update([DataSourceRequest] DataSourceRequest request,

            [Bind(Prefix = "models")]IEnumerable<PurchaseModel> model)

        {

           

            if (model != null && ModelState.IsValid)

            {

                foreach (var product in model)

                {

                       //write code

                }

            }

            return Json(TempPurchaseDynamicGrid.ToDataSourceResult(request, ModelState));

        }

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult EditingCustom_Create([DataSourceRequest] DataSourceRequest request,

            [Bind(Prefix = "models")]IEnumerable<PurchaseModel> model)

        {

            var results = new List<PurchaseModel>();

            if (model != null && ModelState.IsValid)

            {

                  //write code

            }

           

            return Json(TempPurchaseDynamicGrid.ToDataSourceResult(request, ModelState));

        }

        [AcceptVerbs(HttpVerbs.Post)]

        public ActionResult EditingCustom_Destroy([DataSourceRequest] DataSourceRequest request,

            [Bind(Prefix = "models")]IEnumerable<PurchaseModel> model)

        {

            foreach (var product in model)

            {

               //write code

            }

            return Json(TempPurchaseDynamicGrid.ToDataSourceResult(request, ModelState));

        }