ASP.NET

In the first DropdownList should display the Countries and in the second should display Cities based on the Country like .. USA then display just cities in USA . well i am getting undefined in dropdown city the Question is why i am getting always undefined in City dropDown list ?

here is countrol :
<pre> public ActionResult Index()
        {
            Details();
            return View();
        }

        public void Details (
        {
            var model = db.GetUniversities().ToList();
            List<SelectListItem> li = new List<SelectListItem>();
            li.Add(new SelectListItem { Text = "Please select Country",Value="0"});
            foreach (var item in model)
            {
                li.Add(new SelectListItem { Text = item.Country, Value = item.Id.ToString()});
                ViewBag.state = li;
            }
        }
        [HttpPost]
        public JsonResult GetCity (int id)
        {
            var ddlCity = db.GetUniversities().Where(x => x.Id == id).ToList();
            List<SelectListItem> licities = new List<SelectListItem>();

            //licities.Add(new SelectListItem { Text = "--Select City--", Value = "0" });

            if (ddlCity != null)
            {
                foreach (var x in ddlCity)
                {
                    licities.Add(new SelectListItem { Text = x.City, Value = x.Id.ToString() });
                }
            }
            return Json(new SelectList(licities, "Text", "Value"));

        }

<div class="form-group">
    @Html.LabelFor(model => model.Country, htmlAttributes: new { @class = "control-label col-md-2" })
    <div class="col-md-10">
        @Html.DropDownListFor(model => model.Country, ViewBag.state as List<SelectListItem>, new { style = "width: 200px;" })

        @Html.ValidationMessageFor(model => model.Country, "", new { @class = "text-danger" })
    </div>
</div>

<div class="form-group">
    @Html.LabelFor(model => model.City, htmlAttributes: new { @class = "control-label col-md-2" })
    <div class="col-md-10">
        @Html.DropDownListFor(model => model.City, new SelectList(string.Empty, "Value", "Text"), "--Select City--", new { style = "width:200px" })

        @Html.ValidationMessageFor(model => model.City, "", new { @class = "text-danger" })

$(document).ready(function () {

        $("#Country").change(function () {
            $("#City").empty();
            $.ajax({
                type: 'POST',
                url: '@Url.Action("GetCity")',
                dataType: 'json',
                data: { id: $("#Country").val() },
                success: function (city) {

                    $.each(city, function (i, city) {
                        $("#City").append('<option value="' + city.Value + '">'+ city.Text + '</option>');
             
                    });
                },
                error: function (ex) {
                    alert('Failed.' + ex);
                }
            });
            return false;
        })
    });

WHERE 1 = 1
 AND ((@uuid IS NULL OR qp.uuid Like '%' + @uuid + '%')
 AND (@callerlist IS NULL OR  qp.call_list_id Like '%' + @callerlist + '%')
 AND (@phone IS NULL OR cl.phone_number Like '%' + @phone + '%')
 AND (@start IS NULL OR startttime >= @start)
 AND (@Endd IS NULL OR endtime <= @Endd)
 AND (@calltype IS NULL OR c.id Like '%' + @calltype + '%')
 AND cl.phone_number IS NOT NULL)

<asp:TextBox id="date_start" style="width:150px;" class="form-control alignleft" runat="server" />

<asp:TextBox id="date_end" style="width:150px;" class="form-control alignleft" runat="server" />

Private Sub SearchCustomers()
     Dim constr As String = ConfigurationManager.ConnectionStrings("ppmtest").ConnectionString

     Using con As New SqlConnection(constr)

         Using cmd As New SqlCommand()

             Dim sql As String = "spGetLogs"
             cmd.CommandType = CommandType.StoredProcedure
             cmd.Parameters.AddWithValue("@uuid", suuid.Text)
             cmd.Parameters.AddWithValue("@callerlist", caller_list_id.Text)
             cmd.Parameters.AddWithValue("@phone", phonenumber.Text)
             cmd.Parameters.AddWithValue("@start", date_start.Text)
             cmd.Parameters.AddWithValue("@Endd", date_end.Text)
             cmd.Parameters.AddWithValue("@calltype", call_type.SelectedValue)
             'Response.Write(sql)
             'Response.End()
             cmd.CommandText = sql

             cmd.Connection = con
             Using sda As New SqlDataAdapter(cmd)
                 Dim dt As New DataTable()
                 sda.Fill(dt)
                 gvCustomers.DataSource = dt
                 gvCustomers.DataBind()

             End Using
         End Using
     End Using
 End Sub