I tried to use a mix of what i found online and your sample on the IgniteUI page and the default app in VS2012 and the code generated from the mvc helper is saying undefined is not a function.  Here is the code i have on the index and what the controller is doing.

@(Html.Infragistics()

.Grid<NOMISe.eSIMON.Web.UI.Areas.Admin.Models.UserIndexView.UserIndexViewEntity>()
.ID("userGrid")
.Columns(column =>
{
column.For(x => x.ID).HeaderText("ID").DataType("string").Hidden(true);
column.For(x => x.DisplayName).HeaderText("Full Name").DataType("string").Width("20%");
column.For(x => x.Email).HeaderText("Email").DataType("string").Width("20%");
column.For(x => x.Status).HeaderText("Status").DataType("int").Width("10%");
column.For(x => x.Department).HeaderText("Department").DataType("string").Width("25%");
column.For(x => x.ExpirationDate).HeaderText("Expiration Date").DataType("dateLong").Width("25%");
})
.Width("100%")
.Height("600px")
.PrimaryKey("ID")
.DataBind()
.Render()
)

the controller:

[PermissionAttribute(Core.Security.SecurityMask.View)]
public ActionResult Index()
{
UserIndexView viewModel = new UserIndexView();

IEnumerable<UserIndexView.UserIndexViewEntity> userList = from user in userService.All()
select new UserIndexView.UserIndexViewEntity
{
ID = user.ID,
DisplayName = user.DisplayName,
Email = user.Email,
Status = user.Status,
Department = user.Department,
ExpirationDate = user.ExpirationDate
};

viewModel.UserIndexViewEntitys = userList;

return View(viewModel);
}