I have reduced my sample as far as I can.. I get a jacascript error in the console when I run it, and the grid appears with column headings but no data:

Exception was thrown at line 1864, column 2 in http://localhost:56929/Scripts/jquery-1.10.2.js

0x800a139e - JavaScript runtime error: Syntax error, unrecognized expression: unsupported pseudo: jqmData

@{

ViewBag.Title = "CSM Tax Report";

}

@using Infragistics.Web.Mvc

@using TrackerMvc.Models.ClientTrackerDataModel.Reports

@model IQueryable<FormsByClient>

<div>

<link href="@Url.Content("~/Content/themes/infragistics/infragistics.theme.css")" rel="stylesheet" />

<link href="@Url.Content("~/Content/structure/infragistics.css")" rel="stylesheet" />

@section scripts {

<script src="@Url.Content("~/igniteui/js/infragistics.core.js")">script>

<script src="@Url.Content("~/igniteui/js/infragistics.lob.js")">script>

<script src="~/igniteui/js/infragistics.loader.js" type="text/javascript">script>

<script type="text/javascript">

$.ig.loader({

scriptPath: '@Url.Content("~/igniteui/js/")',

cssPath: '@Url.Content("~/igniteui/css/")',

resources: "igGrid.Sorting"

});

script>

@(Html.Infragistics()

.Grid<FormsByClient>(Model)

.ID("Grid")

.Height("500px")

.Width("100%")

.AutoGenerateColumns(false)

.AutoGenerateLayouts(true)

.RenderCheckboxes(true)

.ResponseDataKey(null)

.Columns(column =>

{

column.For(x => x.FileCompID).HeaderText("File Comp ID").Width("35%");

column.For(x => x.FiledMethodId).HeaderText("Filed Method ID").Width("65%");

})

.DataSourceUrl(Url.Content("~/ct/FormsByClientJson/1/2015/C"))

.Render()

)

}

div>

private GridModel GridLoadOnDemandModel()

{

// Define the Categories layout

GridModel grid = new GridModel();

grid.AutoGenerateLayouts = true;

grid.AutoGenerateColumns = false;

grid.Width = "100%";

grid.PrimaryKey = "FileCompID";

grid.Columns.Add(new GridColumn() { HeaderText = "FileCompID", Key = "FileCompID", DataType = "number", Width = "15%" });

grid.Columns.Add(new GridColumn() { HeaderText = "FiledMethodId", Key = "FiledMethodId", DataType = "number", Width = "85%" });

return grid;

}

[Route("FormsByClientJson/{id:int}/{fileyear:int}/{filetype:alpha}")]

public JsonResult FormsByClientJson(int id, int fileyear, string filetype)

{

GridModel model = GridLoadOnDemandModel();

model.DataSource= new List<FormsByClient>()

{

new FormsByClient() { FileCompID = 1, FiledMethodId = 10 },

new FormsByClient() { FileCompID = 2, FiledMethodId = 20 }

}.AsQueryable();

return model.GetData();

}

namespace TrackerMvc.Models.ClientTrackerDataModel.Reports

{

public class FormsByClient

{

public int FileCompID { get; set; }

public int FiledMethodId { get; set; }

}

}

JSON Returned by Datasourceurl =

{"Records":[{"FileCompID":1,"FiledMethodId":10},{"FileCompID":2,"FiledMethodId":20}],"TotalRecordsCount":0,"Metadata":{"timezoneOffset":-21600000}}