jquery.pagination +JSON 动态无刷新分页

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class SqlPage : System.Web.UI.Page
{
public int pageCount = 0;
public static string connString = "server=192.168.1.91;database=ReportDB;uid=sa;pwd=123456";

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
pageCount = GetTotalPage();
if (Request["pageIndex"] != null && Request["pageSize"] != null)
{
int pageSize = Convert.ToInt32(Request["pageSize"]) == 0 ? 1 : Convert.ToInt32(Request["pageSize"]);
int pageIndex = Convert.ToInt32(Request["pageIndex"]) == 0 ? 1 : Convert.ToInt32(Request["pageIndex"]);
Response.Write(GetOnePage(pageSize, pageIndex));
Response.End();
}
}
}

public int GetTotalPage()
{
DBHelper.connString = connString;
string sql = "select count(*) from News";
int rs = Convert.ToInt32(DBHelper.ExecuteScalar(sql));
return rs;
}

public string GetOnePage(int pageSize, int pageIndex)
{
DBHelper.connString = connString;
string sql = string.Empty;
sql = "SELECT TOP " + pageSize + " NewsID,Title,SmallClassName,Author,Updatetime FROM News WHERE NewsID NOT IN (SELECT TOP " + pageSize * (pageIndex - 1) + " NewsID FROM News ORDER BY NewsID DESC) ORDER BY NewsID DESC";

DataTable dt = DBHelper.QueryBySql(sql);
return ConvertJson.ToJson(dt, "News");
}

}