asp.net使用AJAX实现无刷新分页

protected void Page_Load(object sender, EventArgs e)
{
    Int32 pageIndex = Int32.MinValue;
    Int32 pageSize = Int32.MinValue;
    String name = String.Empty;
    JavascriptSerializer jss = new JavascriptSerializer();
    if (Request[Name] != null)
    {
        name = Request[Name].ToString();
        if (Request[PageIndex] != null)
        {
            pageIndex = Int32.Parse(Request[PageIndex].ToString());
            pageSize = Request[PageSize] != null &＃63; Int32.Parse(Request[PageSize].ToString()) : 5;
            IList cloudfileLists = new List();//cloudfile是自己写的类，表示一条数据

            CloudFile cf = null;
            int cout = 0;
            DataSet ds = LookDataFromDB(name, pageIndex, pageSize,out cout);
            foreach (DataRow row in ds.Tables[0].Rows)//把你的数据重新封装成Lis，才能被jss.Serialize()，不然会报错。
            {
                cf = new CloudFile();
                cf.FileID = row[FilePathId].ToString();
                cf.FileName = row[FileName].ToString();
                cloudfileLists.Add(cf);
            }
            if (cloudfileLists.Count > 0)
            {
                Response.Write({Count: + (cout) + ,cloudfileLists: + jss.Serialize(cloudfileLists) + });
                Response.End();
            }
        }
    }
}
private DataSet LookDataFromDB(string name, int pageIndex, int pageSize,out int cout)
{
    DataSet ds = new DataSet();
    try
    {
        pageIndex = 5 * pageIndex;//pageIndex ，表示这一页从哪一条数据开始
       // 这里写自己的数据获取方法，把数据获取好了甩到ds里面，返回到前面。（应该有更好的办法，自己想哦，也可以发评论我们一起探讨....。）
    }
    catch (Exception)
    {
        cout = 0;
        ds = null;
    }
    return ds;
}

//CloudFile类

    public class CloudFile
    {
        public String FileID { get; set; }
        public String FileName { get; set; }
        public String FileDirName { get; set; }
    }