Filters defined in View have null values

[Vesselin Obreshkov]

When defining filter in my views using the new helpers, the filter values come back null. Here is one example (I have few other very similar grids all producing the exact same result for me).

In this example, I am giving the filter a value coming from the ViewBag.StatusID, however hard-coding a specific value (1) produces the same null value.

View

@(Html.Kendo().Grid<Mobooka.Models.Campaign>()
	.Name("CampaignsGrid")
	.Columns(columns =>
	{
		columns.Bound(o => o.CampaignID).Title("ID").Width(80);
		columns.Bound(o => o.Offer.OfferName).Title("Offer");
		columns.Bound(o => o.Offer.Advertiser.Company.CompanyName).Title("Advertiser").Width(180);
		columns.Bound(o => o.Status.StatusName).Title("Status").Width(100);
	})
	.DataSource(dataSource => dataSource
		.Ajax()
		.Read(read => read.Action("GetCampaigns", "Home"))
		.Filter(filter => filter.Add(f => f.StatusID).Equals(ViewBag.StatusID))
		.PageSize(25)
		.ServerOperation(true)
	)
	.Filterable(filtering => filtering
		.Enabled(true)
	)
	.Pageable(paging => paging
		.Enabled(true)
		.Info(true)
		.PageSizes(false)
		.Refresh(true)
	)
	.Scrollable(scrolling => scrolling
		.Enabled(true)
		.Height(560)
		.Virtual(true)
	)
	.Sortable(sorting => sorting
		.Enabled(true)
		.AllowUnsort(true)
		.SortMode(GridSortMode.SingleColumn)
	)
)

Controller

public ActionResult Index()
{
	ViewBag.StatusID = (int)Enumerations.Status.Pending; 
	return View();
}
...
public JsonResult GetCampaigns([DataSourceRequest] DataSourceRequest request)
{
	IEnumerable<Campaign> campaigns = db.Campaigns....;
	return new JsonNetResult(campaigns.ToDataSourceResult(request));
}

Request

1. Request URL:
   http://dashboard.mobooka.local/Admin/Home/GetCampaigns
2. Request Method:
   POST
3. Status Code:
   500 Internal Server Error
4. Request Headersview source
   1. Accept:
      */*
   2. Accept-Charset:
      ISO-8859-1,utf-8;q=0.7,*;q=0.3
   3. Accept-Encoding:
      gzip,deflate,sdch
   4. Accept-Language:
      en-US,en;q=0.8
   5. Cache-Control:
      max-age=0
   6. Connection:
      keep-alive
   7. Content-Length:
      55
   8. Content-Type:
      application/x-www-form-urlencoded
   9. Cookie:
      ASP.NET_SessionId=nrwg2rrgsl1mpskv4yd40na0; .MOBOOKAXAUTH=F8959A12603B131542EB99BCA073D828E64DB8EAA2BF0832D9C12107ED7D453AA9344DEE6AF10ADC966E1C1E50C517378805C2A50D12447FDCEDE5BFB6D69852444068BA6FAE7EFB5B198516494F4223D3221681FF0859D795FDDA70092F184F9C403A49B18BA57BF9F7F248A623F06E40915409CDAA83303B34536978E15A747FA3A47DE6A1D6932845ACDA4461ADC98A05F0EB; MOBOOKASESSION=Name=Mobooka&Type=Employee&A=0&E=7&P=0&U=21; .ASPXROLES=qK_xf5Puh7ahlJTQbCqrdo9FbtqU1d8cQFTVb-CRXFaFk8I1TtnjXrhJMmgwWFii2c24xHu2RAODRoKTCmFc8q0DP9nTavMKWK1XAwbEwtaGeHlg3SHcIjMS8UETV4lu8nOLlc2B6Ke1uUzxKqimbH2WrQN-NvKn212PpnBv6Tw4qeIgGShmK3YMXWjwj_HQzOHx_sjw6fuUOa8RtS-sFZUa6dE-XQyJguHLAlQibYl7DWTCvrSn4Lao7VImcKku9ql_eu6iFVal0kYxnR7e7K5ixOLayyiioUIb7ocwC_xMwPTxc8bAtKe2FTDJbTXSUqrcPu-n4EsffvtjjMgRfQ9ERw7j24hTYPE97fuwO-3YUxYLF5sb9LEM4Flpdf7ppDRelxCJw-1SO84nvQ9pCmX_AfPpdVTGQ1vCrGUkq2TjAD_7Q2c9n9OZhVLlbguEKO52xqcoZ0jOCRtABa8iBv73qBEOcFhd6ju66cV2VJwpPUSzY5dedqxWcQmMS0vKaSPhRALNdJwIJS4IK0w_PsSbU4Tz035EftcE7vb80HJVKS4U0
   10. Host:
       dashboard.mobooka.local
   11. Origin:
       http://dashboard.mobooka.local
   12. Referer:
       http://dashboard.mobooka.local/Admin/Home
   13. User-Agent:
       Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5
   14. X-Requested-With:
       XMLHttpRequest
5. Form Dataview URL encoded
   1. sort:
   2. page:
      1
   3. pageSize:
      25
   4. group:
   5. filter:
      StatusID~eq~null
6. Response Headersview source
   1. Cache-Control:
      private
   2. Content-Length:
      8506
   3. Content-Type:
      text/html; charset=utf-8
   4. Date:
      Wed, 27 Jun 2012 17:45:11 GMT
   5. Server:
      Microsoft-IIS/7.5
   6. X-AspNet-Version:
      4.0.30319
   7. X-Powered-By:
      ASP.NET

[Rosen]

Hi Vesselin,

Looking at the code you have pasted it appears that you are calling the Object's Equals method instead the appropriate IsEqualTo. Please modify the code and see if there is a change in the behavior.

All the best,
Rosen
the Telerik team