how to validate telerik mvc grid using remote attribute in data annotations? - asp.net-mvc-3

Question

I want to check if username already exists in database using telerik mvc grid (batch edit). But The problem is in order to validate it, I need to pass applconst_id as a parameter in CheckDuplicateType function. But it always return "undefined", I don't know how to get the right value.
this is my model class:
public class masterTypeCont
{
[Key]
public Int32 applconst_id { get; set; }
[Required(ErrorMessage = "This field needs a value!")]
[Remote("CheckDuplicateType",
"Type",
AdditionalFields = "applconst_id",
ErrorMessage = "Code already exists.")]
public String note1 { get; set; }
}
and this is my controller:
[HttpGet]
public virtual JsonResult CheckDuplicateType(masterTypeCont tipe, String applconst_id)
{
Int32 intID = Convert.ToInt32(applconst_id);
return Json(typeEnt.ValidateCustomer(intID, tipe.note1), JsonRequestBehavior.AllowGet);
}
And this is ValidateCustomer function:
public bool ValidateCustomer(Int32 id, String nama) {
Int32 x = db.appl_const.Where(a =>
a.group_id == "CH_COMP_CODE" &&
a.note1.Trim() == nama.Trim() &&
a.applconst_id != id).Count();
Boolean res = x == 0 ? true : false;
return res;
}
This is my view:
#{
ViewBag.Title = "Type List";
Layout = "../Shared/_Layout.cshtml";
}
<div class="direct-content">
#using (Html.BeginForm())
{
#(Html.Telerik().Grid<ComplaintHandling.Models.masterTypeCont>()
.Name("TypeGrid")
.Localizable("id-ID")
.ToolBar(commands =>
{
commands.Insert();
commands.SubmitChanges();
})
.DataKeys(keys => keys
.Add(o => o.applconst_id)
.RouteKey("applconst_id"))
.DataBinding(dataBinding =>
{
dataBinding.Ajax()
.Select("_SelectAllType", "Type")
.Update("_SaveBatchType", "Type");
})
.Columns(columns =>
{
columns.Bound(o => o.applconst_id).Hidden();
columns.Bound(o => o.note1).Title("Name");
columns.Command(commands =>
{
commands.Delete().ButtonType(GridButtonType.Text);
}).Title("Command");
})
.ClientEvents(events => events
.OnEdit("OnEditGrid")
)
.Editable(editing => editing.Mode(GridEditMode.InCell))
.Selectable()
.Pageable(pager => pager.PageSize(15))
.Filterable()
.Sortable()
.Scrollable(x => x.Height("450px"))
.KeyboardNavigation()
.Resizable(x => x.Columns(true))
)
<input type="hidden" name="applconst_id" id="applconst_id" value="1">
}
</div>
I write hidden input there to contains the applconst_id, but still it value doesn't passed to controller.
Sorry for my bad english.
Any help will be deeply appreciated.
Thanks.

Answer 1

Try like this:
[HttpGet]
public virtual ActionResult CheckDuplicateType(masterTypeCont tipe)
{
var result = typeEnt.ValidateCustomer(tipe.applconst_id, tipe.note1);
return Json(result, JsonRequestBehavior.AllowGet);
}

Answer 2

Thanks for the answers before.
After doing some research, I finally found solution for my own problem.
I create a little trick there, maybe this isn't a good way, but at least it can solve my problem.
Basically, I just play with the name attribute of an element so that it value can be passed to controller.
Here, I will explain in detail how I've done this.
First, I changed Grid columns in my View to be like this:
Please concern on applconst_id hidden field. I add client template there.
columns.Bound(o => o.applconst_id).Hidden()
.ClientTemplate("<input class='typeID' name='common_id' value='<#= applconst_id #>'>");
columns.Bound(o => o.note1).Title("Nature of complaint");
Second, I add this code in "onEdit" function:
//this code change ID that is being edited, so that it can be passed to controller
var $inputID = $('.t-grid-edit-cell').prev().find('.typeID');
$inputID.attr('name', 'applconst_id');
//change back ID that is not being edited, so that it's not passed to controller
$('td:not(.t-grid-edit-cell)').prev().find('.typeID').attr('name','common_id');
Third, this is my controller:
[HttpGet]
public JsonResult CheckDuplicateType(String applconst_id, String note1)
{
Int32 IntID = Convert.ToInt32(applconst_id);
return Json(typeEnt.ValidateCustomer(IntID, note1), JsonRequestBehavior.AllowGet);
}
And my "ValidateCustomer" function stay the same.
I hope my solution can help other people who have the same problem with me.
Thanks.
Regards,
L.W.