Ajax paging with MicrosoftAjax script library

Syntax:<%=Ajax.Pager(Model,"Paging",null, new PagerOptions{ShowDisabledPagerItems = false}, new AjaxOptions{ UpdateTargetId = "dvOrders" },null)%>
Order IDOrder DateCustomer IDShip Address
110604/30/1998 12:00:00 AMFRANSVia Monte Bianco 34
110614/30/1998 12:00:00 AMGREAL2732 Baker Blvd.
110624/30/1998 12:00:00 AMREGGCStrada Provinciale 124
110634/30/1998 12:00:00 AMHUNGO8 Johnstown Road
110645/1/1998 12:00:00 AMSAVEA187 Suffolk Ln.
110655/1/1998 12:00:00 AMLILASCarrera 52 con Ave. Bolívar #65-98 Llano Largo
110665/1/1998 12:00:00 AMWHITC1029 - 12th Ave. S.
110675/4/1998 12:00:00 AMDRACDWalserweg 21
110685/4/1998 12:00:00 AMQUEENAlameda dos Canàrios, 891
110695/4/1998 12:00:00 AMTORTUAvda. Azteca 123
110705/5/1998 12:00:00 AMLEHMSMagazinweg 7
110715/5/1998 12:00:00 AMLILASCarrera 52 con Ave. Bolívar #65-98 Llano Largo
110725/5/1998 12:00:00 AMERNSHKirchgasse 6
110735/5/1998 12:00:00 AMPERICCalle Dr. Jorge Cash 321
110745/6/1998 12:00:00 AMSIMOBVinbæltet 34
110755/6/1998 12:00:00 AMRICSUStarenweg 5
110765/6/1998 12:00:00 AMBONAP12, rue des Bouchers
110775/6/1998 12:00:00 AMRATTC2817 Milton Dr.

Ajax paging (only refresh part of page and url does not change)：

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Standard url paging (refresh whole page and url changed)

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<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" 
Inherits="System.Web.Mvc.ViewPage<PagedList<Order>>" %>
<%@ Import Namespace="Webdiyer.Mvc2Demo.Models"%>
<%@ Import Namespace="Webdiyer.WebControls.Mvc"%>
 
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
    Ajax paging with MicrosoftAjax 
</asp:Content>
 
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<script language="javascript" type="text/javascript" 
src="<%=Url.Content("~/Scripts/MicrosoftAjax.js") %>"></script>
<script language="javascript" type="text/javascript" 
src="<%=Url.Content("~/Scripts/MicrosoftMvcAjax.js") %>"></script>
 
    <h2>Ajax paging with MicrosoftAjax script library</h2>
<%Html.RenderPartial("UCOrderList", Model); %>
</asp:Content>
<%@ Control Language="C#" 
Inherits="System.Web.Mvc.ViewUserControl<PagedList<Order>>" %>
<%@ Import Namespace="Webdiyer.Mvc2Demo.Models"%>
<%@ Import Namespace="Webdiyer.WebControls.Mvc"%>
<div id="dvOrders">
<table width="98%">
<tr><th>Order ID</th><th>Order Date</th><th>Customer ID</th>
<th>Ship Address</th></tr>
<%foreach(Order od in Model)
 {
     %>
     <tr><td><%=od.OrderID %></td><td><%=od.OrderDate.ToString() %></td>
     <td><%=od.CustomerID %></td><td><%=od.ShipAddress %></td></tr>
     <%
 } %>
</table>
<p>Ajax paging (only refresh part of page and url does not change)：'a3?</p>
<%=Ajax.Pager(Model, new PagerOptions { PageIndexParameterName = "id", 
    ShowDisabledPagerItems = false, SeparatorHtml = "&nbsp;&nbsp;&nbsp;" }, 
    new AjaxOptions { UpdateTargetId = "dvOrders"})%>
<p>Standard url paging (refresh whole page and url changed)</p>
<%=Html.Pager(Model, new PagerOptions { PageIndexParameterName = "id", 
    ShowDisabledPagerItems = false, SeparatorHtml = "&nbsp;&nbsp;&nbsp;" })%>
</div>
        public ActionResult MsAjaxOrders(int? id)
        {
            using (var db = new MvcPagerDemoDataContext())
            {
                PagedList<Order> orders = db.Orders.ToPagedList(id ?? 1, 20);
                if (Request.IsAjaxRequest())
                    return PartialView("UCOrderList", orders);
                return View(orders);
            }
        }