MVC模式中，如何使用AJAX进行分页

  public ActionResult HelpList()

        {

            Entity.Commons.VPredication vp = new Entity.Commons.VPredication();

            Entity.Commons.PagingParam pp = new Entity.Commons.PagingParam(1,10);

            Entity.PagedList<Entity.HelpDocument> list = _HelpDocumentServices.GetHelpDocument(vp,pp);

            List<Entity.HelpCategory> clist = _HelpDocumentServices.GetAllCatetories();

            clist.Insert(0,new Entity.HelpCategory() { HelpCategoryID = "",CategoryName = "选择类别" });

             ViewData["Category"] = clist;

            return View(list);

        }

 public ActionResult PageHelp(int? pi,string title,string cid)

        {

            Entity.Commons.VPredication vp = new Entity.Commons.VPredication();

            Entity.Commons.PagingParam pp = new Entity.Commons.PagingParam(pi ?? 1,10);

            if (!string.IsNullOrEmpty(title))

                vp.AddItem("Title",title);

            if (!string.IsNullOrEmpty(cid))

                vp.AddItem("HelpCategoryID",cid);

            Entity.PagedList<Entity.HelpDocument> list = _HelpDocumentServices.GetHelpDocument(vp,pp);

            list.AddParameters = new System.Collections.Specialized.NameValueCollection();

            list.AddParameters.Add("title",title);

            list.AddParameters.Add("cid",cid);

            return PartialView("LelpItemList",list);

        }

<asp:Content ID="Content3" ContentPlaceHolderID="ScriptContent" runat="server">

     <script type="text/javascript">

         $(function() {

             $('#search_btn').click(function() {

                 var title = $('#Title').val();

                 var cid = $('#CategoryList').val();

                 $.ajax({

                     type: "POST",

                     url: "/Help/PageHelp",

                     data: "pi=1&title=" + title + "&cid=" + cid,

                     success: function(data) {

                         $('#helpitem_div').html(data);

                     }

                 });

             })

         })

    </script>

    <script src="http://www.cnblogs.com/Scripts/js/Help/DelHelp.js" type="text/javascript"></script>

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <h1>

        <span class="action-span1"><a href="/">管理中心</a> - 帮助管理 </span>

    </h1>

    <div>

        标题：<input id="Title" type="text" />分类：

        <select id="CategoryList" name="CategoryList">

            <%foreach (var i in ViewData["Category"] as List<Entity.HelpCategory>)

              {

            %>

            <option value="<%=i.HelpCategoryID %>" style="color: #339; background-color: #eee;">

                <%=i.CategoryName%>

            </option>

            <%

                if (i.SubCategoryies != null)

                {

                    foreach (var ii in i.SubCategoryies)

                    {    

            %>

            <option value="<%=ii.HelpCategoryID %>">&nbsp;&nbsp;=><%=ii.CategoryName%>

            </option>

            <%}

                }

              } %>

        </select>

        <input id="search_btn" class="button" type="button" value="查询" /></div>

    <div id="helpitem_div">

        <%Html.RenderPartial("LelpItemList",Model); %>

    </div>

</asp:Content>

<script type="text/javascript">

    //链接始终在一个窗口中打开

    function ActiveWin(url) {

        var w = screen.availWidth;

        var h = screen.availHeight;

        var popup = window.open(url,"win_name","top=0 left=0 scrollbars=yes status=no menubar=0 toolbar=0 resizable=yes");

        popup.focus();

        return false;

    }

</script>

<script src="http://www.cnblogs.com/Scripts/js/liebiao_table.js" type="text/javascript"></script>

<table width="100%" id="" cellpadding="3" cellspacing="1" class="liebiao_table">

    <thead>

        <tr>

            <th>

                标题

            </th>

            <th>

                分类

            </th>

            <th>

                排序

            </th>

            <th>

                创建时间

            </th>

            <th>

                操作

            </th>

        </tr>

    </thead>

    <tbody>

        <%foreach (var item in Model)

          {

        %>

        <tr>

            <td>

                <a href="/help/HelpDetail?helpid=<%=item.HelpDocumentID %>">

                    <%=item.Title %></a>

            </td>

            <td>

                <%=item.HelpCategory.FatherCategory.CategoryName %>=><%=item.HelpCategory.CategoryName %>

            </td>

            <td align="center">

                <%=item.sortNumber %>

            </td>

            <td align="center">

                <%=item.CreateDate %>

            </td>

            <td align="center">

                <a href="javascript:void(0)" onclick="ActiveWin('/help/HelpDetail?helpid=<%=item.HelpDocumentID %>')">

                    查看</a>&nbsp;&nbsp;<a href="javascript:void(0)" onclick="ActiveWin('/Help/EditHelp?hid=<%=item.HelpDocumentID %>')">编辑</a>&nbsp;&nbsp<a

                        href="javascript:void(0)" onclick="DelHtml('<%=Model.PageIndex %>','<%=item.HelpDocumentID %>')">删除</a>

            </td>

        </tr>

        <%

            } 

        %>

    </tbody>

</table>

<%=Html.AjaxPager(Model,"helpitem_div","PageHelp","Help")%>