asp.net mvc 无刷新加载

1、视图（index）

     <!--start-->
     <div data-am-widget="list_news" class="am-list-news am-list-news-default">
         <!--列表标题-->
         <div class="am-list-news-bd">
             <ul class="am-list" id="NewsList">
                 @{ Html.RenderPartial("PartialNews", Model);}
             </ul>
         </div>
     </div>
     <button type="button" class="am-btn am-btn-primary am-btn-block" pageindex="1" onclick="LoadData(this,'/News/Index?Id=@ViewBag.Id', 'NewsList')">加载更多</button>
     <button class="am-btn am-btn-default" style="display: none"><i class="am-icon-spinner am-icon-spin"></i>加载中</button>
     <!--end-->

2、对应的部分视图（PartialNews）

 @foreach (var item in Model)
 {
     <li class="am-g am-list-item-desced am-list-item-thumbed am-list-item-thumb-left">
         <div class="am-u-sm-4 am-list-thumb">

             <a href="/Mobile/News/Detail/@item.ID" class="">
                 <img src="@(item.Image??"/Images/defaultnew.png")" alt="@item.Title" />
             </a>
         </div>
         <div class=" am-u-sm-8 am-list-main">
             <h3 class="am-list-item-hd">
                 <a href="/Mobile/News/Detail/@item.ID" class="text_block">@item.Title</a>
             </h3>
             <div class="am-list-item-text">@item.CreateDate</div>
             <div class="am-list-item-text">@item.MinDes.RemoveHTMLTags()</div>
         </div>
     </li>
 }

3、js函数

 <script>
         function LoadData(o, u, p) {
             $(o).hide().next().show();
             var pageindex = parseInt($(o).attr("pageindex"));
             pageindex++;
             $(o).attr("pageindex", pageindex);
             if (u.indexOf('?') < 0) {
                 u = u + "?from=data"
             }
             $.get(u + "&pageindex=" + pageindex, function (data) {
                 if (data == "") {
                     $(o).attr("pageindex", parseInt($(o).attr("pageindex")) - 1)
                     $(o).show().next().hide()
                     $(o).html("没有更多了!");
                     $(o).removeAttr("onclick");
                 } else {
                     $(data).appendTo($("#" + p));
                     $(o).show().next().hide()
                 }
             });
         }
     </script>