JQuery与JSon实现的无刷新分页代码

如图

而无刷新分页可以解决这个问题，上面播放着视频，下面我点下一页看着评论，现在大部分的网站都是无刷新分页。
源码如下（我是采用一页显示10条记录）：
需要四个文件
一个实体类文件 CategoryInfoModel.cs
一个SqlHelper SQLHelper.cs
一个AJAX服务端处理程序 PagedService.ashx
一个客户端调用页面 WSXFY.htm
CategoryInfoModel.cs和SQLHelper.cs我就不写了，都知道是什么文件
PagedService.ashx 代码如下

复制代码代码如下:

 
using System.Web.Script.Serialization; 
public void ProcessRequest(HttpContext context) 
{ 
context.Response.ContentType = "text/plain"; 
string strAction = context.Request["Action"]; 
//取页数 
if (strAction == "GetPageCount") 
{ 
string strSQL = "SELECT COUNT(*) FROM CategoryInfo"; 
int intRecordCount = SqlHelper.ExecuteScalar(strSQL); 
int intPageCount = intRecordCount / 10; 
if (intRecordCount % 10 != 0) 
{ 
intPageCount++; 
} 
context.Response.Write(intPageCount); 
}//取每页数据 
else if (strAction == "GetPageData") 
{ 
string strPageNum = context.Request["PageNum"]; 
int intPageNum = Convert.ToInt32(strPageNum); 
int intStartRowIndex = (intPageNum - 1) * 10 + 1; 
int intEndRowIndex = (intPageNum) * 10 + 1; 
string strSQL = "SELECT * FROM ( SELECT ID,CategoryName,Row_Number() OVER(ORDER BY ID ASC) AS rownum FROM CategoryInfo) AS t"; 
strSQL += " WHERE t.rownum >= " + intStartRowIndex + " AND t.rownum <= " + intEndRowIndex; 
DataSet ds = new DataSet(); 
SqlConnection conn = SqlHelper.GetConnection(); 
ds = SqlHelper.ExecuteDataset(conn,CommandType.Text,strSQL); 
List<CategoryInfoModel> categoryinfo_list = new List<CategoryInfoModel>();//定义实体集合 
for (int i = 0; i < ds.Tables[0].Rows.Count; i++) 
{ 
CategoryInfoModel categoryinfo = new CategoryInfoModel(); 
categoryinfo.CategoryInfoID = Convert.ToInt32(ds.Tables[0].Rows[i]["ID"]); 
categoryinfo.CategoryName = ds.Tables[0].Rows[i]["CategoryName"].ToString(); 
categoryinfo_list.Add(categoryinfo); 
} 
JavaScriptSerializer jss = new JavaScriptSerializer(); 
context.Response.Write(jss.Serialize(categoryinfo_list));//序列化实体集合为javascript对象 
} 
} 

WSXFY.htm 代码如下

复制代码代码如下:

 
<head> 
<title>无刷新分页</title> 
<script type="text/javascript" src="../Scripts/jquery-1.5.1.min.js"></script> 
<script type="text/javascript"> 
$(function () { 
$.post("PagedService.ashx",{ "Action": "GetPageCount" },function (response,status) { 
for (var i = 1; i <= response; i++) { 
var td = $("<td><a href=''>" + i + "</a></td>"); 
$("#trPage").append(td); 
td.click(function (e) { 
e.preventDefault(); //不要导向链接 
$.post("PagedService.ashx",{ "Action": "GetPageData","PageNum":$(this).text() },status) { 
var categorys = $.parseJSON(response); 
$("#ulCategory").empty(); 
for (var i = 0; i < categorys.length; i++) { 
var category = categorys[i]; 
var li = $("<li>" + category.CategoryInfoID + "-" + category.CategoryName + "</li>"); 
$("#ulCategory").append(li); 
} 
}); 
}); 
} 
}); 
}); 
</script> 
</head> 
<body> 
<ul id="ulCategory"></ul> 
<table> 
<tr id="trPage"> 
</tr> 
</table> 
</body> 
</html> 

效果如下（页面好不好看取决于你画DOM 的水平了，我这里只是简单的画了画）

JQuery与JSon实现的无刷新分页代码

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