MVC :: JSON Object - Grid Is Not Filling Properly

I've created a simple (or what I thought was simple!) search form using Razor, MVC3 and the webgrid from the web helpers. I enabled paging, used a great article I found here to get that working... or so I thought. Basically what happens is that when I click the page buttons at the bottom of the grid it does something that I didn't expect, and creates a JSON object, then the browser prompts me to try and save it, and not as I expected to refill the grid. I can't see what I'm doing wrong, and before I break my monitor by throwing it onto the railway line!

[Code]....

My jQuery code

[Code]....

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using MvcApplication1.Models;
using System.Configuration;
using System.Web.Helpers;
namespace MvcApplication1.Controllers
{
public class SearchController : Controller
{
//
// GET: /Search/
Entities t = new Entities(ConfigurationManager.ConnectionStrings["Entities"].ConnectionString);
public ActionResult Details(int id)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == id select x).SingleOrDefault();
Customer c = (from cu in t.Customers where cu.CustomersID == q.Company select cu).SingleOrDefault();
ViewBag.Customers = c.CompanyName;
Panel_type pan = (from pa in t.Panel_types where pa.ID == q.Panel_type select pa).SingleOrDefault();
ViewBag.Panel = pan.Panel_type1;
return View(q);
}
[HttpGet]
public ActionResult Edit(int id)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == id select x).SingleOrDefault();
List<Customer> c = (from cu in t.Customers select cu).ToList();
ViewBag.Customers = c;
return View(q);
}
[HttpPost]
public ActionResult Edit(Tender_Question model)
{
if (ModelState.IsValid)
{
Tender_Question q = (from x in t.Tender_Questions where x.Unique_ID_number == model.Unique_ID_number select x).SingleOrDefault();
q.Answer = model.Answer;
q.Company = model.Company;
q.Customer = model.Customer;
q.Date = model.Date;
q.Page_Question_Ref = model.Page_Question_Ref;
q.Panel_type = model.Panel_type;
q.Question = model.Question;
q.Type_of_tender = model.Type_of_tender;
//add update code
t.SaveChanges();
return RedirectToAction("Index");
}
else
{
return View(model);
}
}
[HttpGet]
public ActionResult Search(int? page)
{
if (page.HasValue)
{
return RedirectToAction("EfficientPaging", new { page = page });
}
else
{
return View();
}
}
[HttpPost]
public ActionResult Search(int? page, FormCollection collection)
{
TempData.Clear();
IEnumerable<Tender_Question> q = getSearch(collection);
TempData.Add("Results", q);
return View(q);
}
private IEnumerable<Tender_Question> getSearch(FormCollection collection)
{
string question;
string answer;
IEnumerable<Tender_Question> q = t.Tender_Questions;
question = collection["Question"];
answer = collection["Answer"];
if (!string.IsNullOrEmpty(question))
{
if (question.EndsWith(","))
{
question = question.Substring(0, question.Length - 1);
} if (question.Length > 0)
{
if (question.Contains(","))
{
string[] questioned = question.Split(',');
foreach (string s in questioned)
{
q = q.Where(m => m.Question.Contains(s));
}
}
else
{
q = q.Where(m => m.Question.Contains(question));
}
}
}
if (!string.IsNullOrEmpty(answer))
{
if (answer.EndsWith(","))
{
answer = answer.Substring(0, answer.Length - 1);
}
if (answer.Length > 0)
{
if (answer.Contains(","))
{
string[] answered = answer.Split(',');
foreach (string s in answered)
{
q = q.Where(m => m.Answer.Contains(s));
}
}
else
{
q = q.Where(m => m.Answer.Contains(answer));
}
}
}
return q;
}
[HttpGet]
public ActionResult EfficientPaging(int? page)
{
IEnumerable<Tender_Question> q = (IEnumerable<Tender_Question>)TempData["Results"];
int skip = page.HasValue ? page.Value - 1 : 0;
q = q.OrderBy(o => o.Unique_ID_number).Skip(skip * 10).Take(10).ToList();
var grid = new WebGrid(q);
var column = new WebGridColumn();
column.CanSort = false;
column.ColumnName = "Unique_ID_number";
column.Header = "Edit";
column.Format = (item) =>
{
return new HtmlString("<a href="/Home/Edit/" + column.ColumnName + "">Edit</a> ");
};
var detcolumn = new WebGridColumn();
detcolumn.CanSort = false;
detcolumn.ColumnName = "Unique_ID_number";
detcolumn.Header = "Details";
detcolumn.Format = (item) =>
{
return new HtmlString("<a href="/Home/Details/" + column.ColumnName + "">Details</a> ");
};
var htmlString = grid.GetHtml(htmlAttributes: new { id = "DataTable" }, columns: grid.Columns(
column, detcolumn,
grid.Column("Question"),
grid.Column("Answer"),
grid.Column("Company"),
grid.Column(columnName: "Type_of_tender", header: "Type of Tender"),
grid.Column(columnName: "Panel_type", header: "Panel type"),
grid.Column(columnName: "Page_Question_Ref", header: "Page Question Ref"),
grid.Column("Date")
));
return Json(new
{
Data = htmlString.ToHtmlString(),
Count =q.Count() / 10
}, JsonRequestBehavior.AllowGet);
}
}
}