PagedList Sample on Controller

PagedListSample.cs

public ActionResult Data(string s, string f, string q, int? p)
{
  ViewBag.CurrentSort = s;
	ViewBag.UsernameSortParm = String.IsNullOrEmpty(s) ? "username_desc" : "";
	ViewBag.DateSortParm = s == "date" ? "date_desc" : "date";
	ViewBag.HoursSortParm = s == "hours" ? "hours_desc" : "hours";
	ViewBag.AlertSortParm = s == "alert" ? "alert_desc" : "alert";

	if (q != null)
	{
		p = 1;
	}
	else
	{
		q = f;
	}

	ViewBag.CurrentFilter = q;

	List<DataViewModel> dataList = db.GetAllData();

	if (!String.IsNullOrEmpty(q))
	{
		dataList = dataList.Where(u => u.UserName.ToUpper().Contains(q.ToUpper())).ToList();
	}

	switch (s)
	{
		case "username_desc":
			dataList = dataList.OrderByDescending(u => u.UserName).ToList();
			break;
		case "date":
			dataList = dataList.OrderBy(u => u.Date).ToList();
			break;
		case "date_desc":
			dataList = dataList.OrderByDescending(u => u.Date).ToList();
			break;
		case "hours":
			dataList = dataList.OrderBy(u => u.Hours).ToList();
			break;
		case "hours_desc":
			dataList = dataList.OrderByDescending(u => u.Hours).ToList();
			break;
		case "alert":
			dataList = dataList.OrderBy(u => u.Alert).ToList();
			break;
		case "alert_desc":
			dataList = dataList.OrderByDescending(u => u.Alert).ToList();
			break;
		default:
			dataList = dataList.OrderBy(u => u.UserName).ToList();
			break;
	}

	int pageSize = 15;
	int pageNumber = (p ?? 1);
	return View(dataList.ToPagedList(pageNumber, pageSize));
}

PM> Install-Package PagedList.Mvc