最近项目中用到ajax分页
在网上找到一个非常好用的分页插件jquery-pagination-ajax，以下是链接
http://www.cnblogs.com/linzheng/archive/2010/11/07/1871069.html
但是无奈，不太适合项目。看了jquery-pagination，大体明白了其原理，所以，自己写你一个很简单的
分页功能，算是完成任务，如图
个人认为ajax分页和普通的分页，核心原理是大致相同的。
我是用了一个隐藏域来存储当前页面的索引。
贴一下主要的前台代码吧 ，有点乱
<body>
<form id="form1" runat="server">
<input type="hidden" id="hdPageCount_1" value="<%=pageCount %>">" /><!--总页数-->
<input type="hidden" id="hdCurrentPageCount_1" value="1" /><!--当前页数-->
<div id="Main-right-marriage">
<div class="next" style="top: 155px; left: 221px;">
<a href="javascript:void(0)" id="btn_prev"><img src="data:image/prev.png" /></a>
</div>
<div class="photo_wall-top">
<div class="left"> <span class="show_big_img"></span></div>
<div class="right"> </div><!-- to right-->
</div><!-- to photo_wall-top-->
<div class="next" style="top:155px; right: 8px;">
<a href="javascript:void(0)" id="btn_next"><img src="data:image/next.png" /></a>
</div>
</div>
</form>
</body>
JS部分的代码
<script type="text/javascript">
$(function () { /*鼠标悬浮效果*/
$(".box a img").mouseover(function () {
var $div = $(this).parent().parent().parent().parent().find(".left");
var $bigImg = $div.find(".bigImg"); $bigImg.attr("src", $(this).attr("src"));
});
//ajax 无效果 bug修改
$(".box a img").live("mouseover", function () { var $div = $(this).parent().parent().parent().parent().find(".left");
var $bigImg = $div.find(".bigImg"); $bigImg.attr("src", $(this).attr("src"));
}); ajax.ProductList(("#btn_next"), 1, 4); //第一次请求初始化 // 分頁效果
var pageSize = 4; //每页显示条数初始化，修改显示条数，修改这里即可
var pageCount_QH = parseInt($("#hdPageCount_1").val()); $("#btn_next").click(function () {
var currentPageIndex = parseInt($("#hdCurrentPageCount_1").val());
if (currentPageIndex * pageSize > pageCount_QH) {
return false;
} else {
$("#hdCurrentPageCount_1").val(currentPageIndex + 1);
ajax.ProductList(this, $("#hdCurrentPageCount_1").val(), pageSize, 1);
}
});
$("#btn_prev").click(function () {
var currentPageIndex = $("#hdCurrentPageCount_1").val(); if (currentPageIndex > 1) {
ajax.ProductList(this, currentPageIndex - 1, pageSize, 1);
$("#hdCurrentPageCount_1").val(currentPageIndex - 1);
}
else {
return false;
}
});
});
</script>
Ashx后台代码：
/// <summary>
/// 获取产品
/// </summary>
public void GetProduct()
{
HttpContext context = HttpContext.Current;
int pageIndex = Convert.ToInt32(context.Request.Form["_pageIndex"]);//页面索引
int pageSize = Convert.ToInt32(context.Request.Form["_pageSize"]);//显示条数
int count = ;
List<PagerTestModels.Product> list = new PagerTestBLL.ProductManager().GetAllProduct(pageSize, pageIndex, "", out count); if (list.Count == )
return; StringBuilder sbFirst = new StringBuilder();//获取第一个大图
StringBuilder sbAll = new StringBuilder();//获取是个小图 foreach (var item in list)
{
if (sbFirst.Length == )
{
sbFirst.AppendFormat("<a href=\"#\" class=\"bigImg_link\" ><img class=\"bigImg\" src=\"{0}\" height=\"260\" width=\"260\" /><br/><span class=\"title bigImg_title\"></span></a>", item.Thumb);
}
sbAll.AppendFormat("<div class=\"box\"><a href=\"{2}\" ref=\"#\"><img src=\"{0}\" height=\"124\" width=\"124\" alt=\"{1}\" /></a></div>", item.Thumb, item.Title, item.PID);
}
Dictionary<string, string> dic = new Dictionary<string, string>();
dic.Add("oneproduct", sbFirst.ToString());
dic.Add("allproduct", sbAll.ToString()); string str = GetJson(dic); HttpContext.Current.Response.ContentType = "plain/text";
HttpContext.Current.Response.Write(str);
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End(); } /// <summary>
/// 字典转化为Json
/// </summary>
/// <param name="dic"></param>
/// <returns></returns>
private string GetJson(Dictionary<string, string> dic)
{
StringBuilder sb = new StringBuilder();
sb.Append("{"); foreach (KeyValuePair<string, string> item in dic)
{
//反義引號 sb.AppendFormat("\"{0}\":\"{1}\",", item.Key, item.Value.Replace("\"", "\\\""));
} //刪除最尾一個逗號 string valRtn = Regex.Replace(sb.ToString(), @",$", "}");//替换最后的，号为}号
return valRtn;
}