signalR send notification to specific client - ajax

Question

when i pass the userId to stored procedure i need to refresh the page to get the realtime notification.but when i use the stored procedure without any parameters it works fine below is my controller.
using NuNetwork.Hubs;
using NuNetwork.Models;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace NuNetwork.Controllers
{
public class NotificationController : Controller
{
// GET: Notification
public ActionResult Notification()
{
return View();
}
public ActionResult GetMessages()
{
return PartialView("GetMessages", GetAllMessages());
}
public IEnumerable<Messages> GetAllMessages()
{
string connString =ConfigurationManager.ConnectionStrings["ConNew"].ConnectionString;
var messages = new List<Messages>();
using (var connection = new SqlConnection(connString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("dbo.USPNotificationSelect", connection))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue("#UserId", SqlDbType.Int).Value =Session["UserId"];
command.Notification = null;
var dependency = new SqlDependency(command);
dependency.OnChange += new OnChangeEventHandler(dependency_OnChange);
if (connection.State == ConnectionState.Closed)
connection.Open();
var reader = command.ExecuteReader();
while (reader.Read())
{
messages.Add(item:
new Messages
{ notification = (int)reader["NotificationId"],
post = (string)reader["Post"],
notificationType = (string)reader["Note"],
createdBy =(string)reader["CreatedBy"],
viewedBy =(string) reader["ViewedBy"] });
}
}
}
return messages;
}
private void dependency_OnChange(object sender, SqlNotificationEventArgs e)
{
if (e.Type == SqlNotificationType.Change)
{
MessagesHub.SendMessages();
}
}
}
}
and my Hub is
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;
using System.Configuration;
namespace NuNetwork.Hubs
{
public class MessagesHub : Hub
{
private static string constr = ConfigurationManager.ConnectionStrings["ConNew"].ConnectionString;
public void Hello()
{
Clients.All.hello();
}
[HubMethodName("sendMessages")]
public static void SendMessages()
{
IHubContext context = GlobalHost.ConnectionManager.GetHubContext<MessagesHub>();
context.Clients.All.updateMessages();
}
}
}
my cshtml page is
#{
Layout = "~/Views/Shared/HomeNavBar.cshtml";
}
<div class="row">
<div class="col-md-12">
<div id="messagesTable"></div>
<div id="text"></div>
</div>
</div>
#section Scripts{
<script src="~/Scripts/jquery.signalR-2.2.2.js"></script>
<script src="~/signalr/hubs"></script>
<script type="text/javascript">
$(function () {
// Declare a proxy to reference the hub.
var notifications = $.connection.messagesHub;
//debugger;
// Create a function that the hub can call to broadcast messages.
notifications.client.updateMessages = function () {
getAllMessages()
};
// Start the connection.
$.connection.hub.start().done(function () {
getAllMessages();
}).fail(function (e) {
alert(e);
});
});
function getAllMessages()
{
var tbl = $('#messagesTable');
$.ajax({
url: '/Notification/GetMessages',
contentType: 'application/html ; charset:utf-8',
type: 'GET',
dataType: 'html'
}).success(function (result) {
tbl.empty().append(result);
}).error(function () {
});
}
</script>
}
so how can i get realtime notifications without refreshing the page while passing userId to stored procedure