Telerik Grid Not Updating - asp.net-mvc

Question

I am trying to create a master/detail Telerik MVC grid with Ajax binding. When I select a detail row to update, click "Edit", edit the value, then click "Update", the value is not updated on the client side. I see in the debugger that the model is not updated when I call TryUpdateModel. Here is the view:
#(Html.Telerik().Grid<FeeSrcMstrDteViewModel>()
.Name("FeeSourceConfirmMasterGrid")
.Columns(columns =>
{
columns.Bound(m => m.FEE_SRC_NME).Width(65).Title(#FeeBuilderResource.FeeSourceName);
columns.Bound(m => m.PUBLISHING_ENTITY_NME).Width(45).Title(#FeeBuilderResource.PublishingEntity);
columns.Bound(m => m.FEE_SRC_SRVC_CATEGORY_NME).Width(55).Title(#FeeBuilderResource.ServiceTypeCategory);
columns.Bound(m => m.FEE_SRC_PUBLISHED_DTE).Width(45).Title(#FeeBuilderResource.PublishedDate).Format("{0:d}");
columns.Bound(m => m.YEAR).Width(30).Title(#FeeBuilderResource.Year);
if (Model.FeeSourceMasterDate.GEO_LOC_ID == 1 || Model.FeeSourceMasterDate.GEO_LOC_ID == 4)
{
columns.Bound(m => m.STATE).Width(50).Title("State or carrier locality");
}
else
{
columns.Bound(m => m.CARRLOC).Width(50).Title("State or carrier locality");
}
//columns.Command(commands => commands.Custom("ExportToExcel").Text("Export to Excel")
//.DataRouteValues(route => route.Add(m => m.FeeSourceMasterDate.FEE_SRC_MSTR_ID).RouteKey("FEE_SRC_MSTR_ID"))
//.Ajax(false).Action("_ConfirmMasterExportXlsAjax", "FeeSrcFlatRate", new { feeSourceServiceMasterDateId = "<#= FEE_SRC_MSTR_ID #>" }))
//.HtmlAttributes(new { style = "text-align: center" }).Width(50).Title(#FeeBuilderResource.Actions);
})
//.ClientEvents(events => events.OnSave("FeeSourceTestGrid_OnSave"))
.DetailView(details => details.ClientTemplate(
Html.Telerik().Grid<FeeSourceFlatRateCommentsViewModel>()
.Name("FeeSourceHome_<#= FEE_SRC_MSTR_ID #>")
.DataKeys(keys => keys.Add(m => m.CommentId))
.DataBinding(dataBinding => dataBinding.Ajax()
.Select("_GetFeeSourceDetailDataAjax", "FeeSrcFlatRate")
.Update("_UpdateFeeSourceDetailDataAjax", "FeeSrcFlatRate")
)
.Columns(columns =>
{
columns.Bound(m => m.CommentId).Width(200).Hidden();
columns.Bound(m => m.FeeSourceDescription).Width(200).Title("Fee source description");
columns.Bound(m => m.FeeSourceComments).Width(200).Title("Fee source comments");
columns.Command(commands =>
{
commands.Edit().ButtonType(GridButtonType.ImageAndText);
}).Width(75);
})
.DataBinding(dataBinding => dataBinding.Ajax()
.Select("_GetFeeSourceDetailDataAjax", "FeeSrcFlatRate", new { id = "<#= FEE_SRC_DTE_ID #>" }))
.Editable(editing => editing.Mode(GridEditMode.InLine).InsertRowPosition(GridInsertRowPosition.Top))
.Footer(false)
.ToHtmlString()
))
.DataBinding(dataBinding => dataBinding.Ajax()
.Select("_GetFeeSourceDataAjax", "FeeSrcFlatRate"))
.Pageable(paging => paging.PageSize(20))
//.Scrollable(scrolling => scrolling.Height(580))
.Sortable()
)
The select methods work great, but not the update method. I would expect the model to be updated when i call TryUpdateModel in my controller, but I do not see that. Here is my controller code:
[HttpPost]
[GridAction]
public ActionResult _UpdateFeeSourceDetailDataAjax(int id)
{
FeeSourceFlatRateViewModel modelTest = new FeeSourceFlatRateViewModel();
List<FeeSourceFlatRateCommentsViewModel> commentsList = new
List<FeeSourceFlatRateCommentsViewModel>();
// get the model by id
IFeeSourceMstrRepository repo = new FeeSourceMstrRepository();
IList<FeeSrcMstrDteViewModel> modelTestList = repo.GetFeeSrcMstrDteViewModel((int)id);
FeeSrcMstrDteViewModel modelTestChange = modelTestList[0];
//Perform model binding (fill the product properties and validate it).
if (TryUpdateModel(modelTestChange))
{
var testy = modelTestChange;
// set the comments
FeeSourceFlatRateCommentsViewModel modelComments = new FeeSourceFlatRateCommentsViewModel
{
CommentId = id,
FeeSourceDescription = modelTestChange.FEE_SRC_DESC,
FeeSourceComments = modelTestChange.FEE_SRC_COMMENTS
};
commentsList.Add(modelTestChange);
// save the object
repo.SaveFeeSrcUOW(saveModel);
OperationStatus opStatus = repo.Save();
}
TempData["FeeSourceFlatRateModel"] = modelTestChange;
return View(new GridModel(commentsList));
}
What am I missing? Thanks for the help!

Answer 1

I got some help from the Telerik site. As it turns out, I was trying to update the incorrect model. My master grid is bound to FeeSrcMstrDteViewModel, but my detail grid, which I want to update, is bound to FeeSourceFlatRateCommentsViewModel.
The fix was to call TryUpdateModel on the FeeSourceFlatRateCommentsViewModel.