public ActionResult Index(int? page, int? size, ListFilterVM filter = null)
{
int pageNumber = 1;
int pageSize = 5;
if (page.HasValue)
pageNumber = page.Value;
if (size.HasValue)
pageSize = size.Value;
var customerList = customerService.GetCustomers();
if (filter != null)
{
customerList = customerService.ApplyFilters(customerList, filter);
}
int totalRowCount = customerList.Count();
int itemstoSkip = pageSize * (pageNumber - 1);
customerList = customerList.Skip(itemstoSkip).Take(pageSize).ToList();
var customerListVM = new CustomerListViewModel { Customers = customerList };
ApplyPagingInformation(pageNumber, pageSize, customerListVM.PagingDetails, totalRowCount);
if (Request.IsAjaxRequest())
{
// If it is an ajax request ( from Sorting/Filtering event or by clicking on a page number), send the response in JSON format
var pagingMarkup = RenderPartialView("TablePagingFooter", customerListVM.PagingDetails, new ViewDataDictionary { { "baseurl", Url.Action("Index", "Home") + "?c" } });
return Json(new { ListingMarkup = RenderPartialView("Partial/Index", customerListVM), PagingMarkup = pagingMarkup }, JsonRequestBehavior.AllowGet);
}
return View(customerListVM);
}
public List<Customer> ApplyFilters(List<Customer> clientList, ListFilterVM search)
{
// If the last event was SEARCH (That means first event was Sort), Let's sort the results first before it the search criteria runs on it.
if ((!String.IsNullOrEmpty(search.LastEvent) && (search.LastEvent.ToUpper() == "FILTER")))
{
clientList = SortClientList(clientList, search);
}
if (search.Filters != null)
{
foreach (var filter in search.Filters)
{
clientList = FilterWithName(clientList, filter).ToList();
clientList = FilterWithCity(clientList, filter).ToList();
clientList = FilterWithRegistrationDate(clientList, filter).ToList();
}
}
if ((!String.IsNullOrEmpty(search.LastEvent)) && (search.LastEvent.ToUpper() == "SORT"))
{
// If the last event was SORT (That means first event was Sort), Let's sort the results now
clientList = SortClientList(clientList, search);
}
return clientList;
}
private List<Customer> SortClientList(List<Customer> clientList, ListFilterVM filter)
{
//Let's sort first and then filter
if (!String.IsNullOrEmpty(filter.SortColumnName))
{
if (filter.SortColumnName.ToUpper() == "FIRSTNAME")
{
if (!String.IsNullOrEmpty(filter.SortType) && filter.SortType.ToUpper() == "DESC")
clientList = clientList.OrderByDescending(s => s.FirstName).ToList();
else
clientList = clientList.OrderBy(s => s.FirstName).ToList();
}
else if (filter.SortColumnName.ToUpper() == "CITY")
{
if (!String.IsNullOrEmpty(filter.SortType) && filter.SortType.ToUpper() == "DESC")
clientList = clientList.OrderByDescending(s => s.City).ToList();
else
clientList = clientList.OrderBy(s => s.City).ToList();
}
else if (filter.SortColumnName.ToUpper() == "REGISTRATIONDATE")
{
if (!String.IsNullOrEmpty(filter.SortType) && filter.SortType.ToUpper() == "DESC")
clientList = clientList.OrderByDescending(s => s.RegistrationDate).ToList();
else
clientList = clientList.OrderBy(s => s.RegistrationDate).ToList();
}
}
return clientList;
}
