Binding the selected value of dropdownlist with the Model for PagedList

Question

Can any one suggest me to how to bind the selected value of the drop down list with the model, so that the selected value should persist when i redirect to the next page of Paged List.

This is My Model.


 public class AirtelManagementModel
{
    public long MobileAcNumber { get; set; } 
    public long AirtelNumber { get; set; }
    public int OneTime { get; set; }
    public float MonthlyCharges { get; set; }
    public float CallCharges { get; set; }
    public float ValueAddedServices { get; set; } 
    public float MobileInternetUsage { get; set; }  
    public float Roaming{ get; set; } 
    public float Discounts { get; set; }
    public float Taxes { get; set; } 
    public float TotalCharges { get; set; }
    public string WhoUploaded { get; set; }
    public DateTime UploadedDate { get; set; }
    public DateTime DateOfCreation { get; set; }
    public int ImportDateId { get; set; }


    public List<MonthListClass> MonthList
    { 
        get;
        set;
    }



    public List<clsYearOfDate> YearList
    {
        get;
        set;
    }
}

public class MonthListClass
{
    public int MonthSelectedId { get; set; }
    public string MonthName { get; set; }
}


public class clsYearOfDate
{
    public int YearSelectedId { get; set; }
    public string YearOfDate { get; set; }
}

This is My controller' action method

   public ActionResult ViewDataOfDatabase(string sortorder, string currentFilter, string searchString, int? page,FormCollection collection) 
     {
         CCIRepository _repository = CCIRepository.CreateRepository();
         AirtelManagementModel _Airtelmodel = new AirtelManagementModel();
         IEnumerable<CityListClass> CityList = _repository.GetCities();
         IEnumerable<SelectListItem> CityListItems = from c in CityList
                                                     select new SelectListItem()
                                                     {
                                                         Value = c.CityName.ToString(),
                                                         Text = c.CityName.ToString(),
                                                         Selected = c.CityName == Request["CityNames"],
                                                     };
         ViewBag.CityList = CityListItems;
         IEnumerable<clsYearOfDate> SelectList = GetYears();
         //IEnumerable<MonthListClass> SelectMonthList = GetMonths(YearId);
         IEnumerable<SelectListItem> Yearitems = (from v in SelectList
                                             select new SelectListItem()
                                             {
                                                 Value = v.YearSelectedId.ToString(),
                                                 Text = v.YearOfDate.ToString(),
                                                 Selected = v.YearOfDate == Request["Yearitems"],
                                             });

         ViewBag.SelectList = Yearitems;
         int DateId=0;
         string CityName = string.Empty; 
         try 
         { 

                int SelectedYear = Convert.ToInt16(collection["Yearitems"].ToString());
                int SelectedMonth = Convert.ToInt16(collection["MonthItems"].ToString());
                CityName = collection["CityNames"].ToString();
                DateId = _repository.GetImportDateId(SelectedYear, SelectedMonth);


         }
         catch(NullReferenceException Ex)
         {
             Console.WriteLine(Ex);
         }
 IEnumerable<SelectListItem> MonthItems = Enumerable.Empty<SelectListItem>();
         ViewBag.SelectMonthList = MonthItems;
        List<AirtelManagementModel> list = ViewDetails();
        ViewBag.CurrentSort = sortorder;

        ViewBag.PhoneSortParm = String.IsNullOrEmpty(sortorder) ? "Phone_desc" : "";
        if (searchString != null )
        {
            page = 1;
        }
        else
        {

            searchString = currentFilter;
        }
        //if(searchString!=null)
        //{

            ViewBag.CurrentFilter = searchString;
            var airteldetails = from _model in list
                                select _model;
            if(!String.IsNullOrEmpty(searchString) && DateId!=0 && !String.IsNullOrEmpty(CityName))
            {
                airteldetails = _repository.FilterAirtelDetails(searchString, DateId, CityName);
                int PageSize = 5;
                int PageNumber = (page ?? 1);
                return View(airteldetails.ToPagedList(PageNumber, PageSize));
            }
            //airteldetails=airteldetails.OrderByDescending(A=>A.AirtelNumber);
            int pageSize = 5;
            int pageNumber = (page ?? 1); 
            //return View(airteldetails.ToList());
            return View(airteldetails.ToPagedList(pageNumber, pageSize));

}

This is My View

    @using (Html.BeginForm("ViewDataOfDatabase", "AirtelManagement",FormMethod.Post))
{
<h3>Search by PhoneNumber:@Html.TextBox("SearchString",ViewBag.CurrentFilter as string)</h3>


    <p><h3>Year:@Html.DropDownList("Yearitems", (IEnumerable<SelectListItem>)ViewBag.SelectList, "Select Year")</h3>
    <h3>Month:@Html.DropDownList("MonthItems", (IEnumerable<SelectListItem>)ViewBag.SelectMonthList, "Select Month")</h3>
    <h3>City: @Html.DropDownList("CityNames", (IEnumerable<SelectListItem>)ViewBag.CityList, "Select City")</h3></p>

<p><input type="submit" value="Search" /></p>

<script>
    $(document).ready(function () {
        $("#Yearitems").change(function () {
            //debugger;
            //alert($("#Yearitems>option:selected").attr("Value"));
            $.ajax({
                type: "Post",
                url: '@Url.Action("GetMonths","AirtelManagement")',
                data: { YearId: $("#Yearitems>option:selected").attr("Value") },
                datatype: "Json",
                success: function (data) {
                    //debugger;
                    $("#MonthItems").html("");
                    $.each(data, function (index, item) {
                        $("#MonthItems").append(new Option(item.MonthName, item.MonthSelectedId));
                    });
                },
                error: function () {
                    alert("Select Year");
                }
            });
        });
    });
</script>

Answer 1

As per answer given in this Post

@{
   List<SelectListItem> listItems= new List<SelectListItem>();
   listItems.Add(new SelectListItem
        {
          Text = "Exemplo1",
          Value = "Exemplo1"
        });
   listItems.Add(new SelectListItem
        {
            Text = "Exemplo2",
            Value = "Exemplo2",
            Selected = true
        });
   listItems.Add(new SelectListItem
        {
            Text = "Exemplo3",
            Value = "Exemplo3"
        });
}

@Html.DropDownListFor(model => model.tipo, listItems, "-- Select Status --")