public int Pages

        {

            get { return int.Parse(ViewState["page"].ToString()); }

            set { ViewState["page"] = value; }

        }

        protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                Pages = 1;

                //string no = Request.QueryString["page"];

                //Pages = no == null ? 1 : int.Parse(no);

                PageShow();

                URLPaged();

            }

           // BindRepeater();

        }        #region 光棒效果

        protected void rptBook_ItemDataBound(object sender, RepeaterItemEventArgs e)

        {

            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)

            {

                HtmlTableRow tr = e.Item.FindControl("tr") as HtmlTableRow;

                tr.Attributes.Add("onmouseover", "color=this.style.backgroundColor;this.style.backgroundColor='red'");

                tr.Attributes.Add("onmouseout", "this.style.backgroundColor=color");

            }

        }

        #endregion

        #region post分页

        public void PageShow()

        {

            PagedDataSource pds = new PagedDataSource();

             //为pagedDataSource设置数据源

             BookInfoBll bookbll = new BookInfoBll();

            

             pds.DataSource = bookbll.GetAll();

             //设置Repeater的数据源为PagedDataSource

             this.rptBook.DataSource = pds;

             //允许分页

             pds.AllowPaging = true;

             //设置分页的条数

             pds.PageSize = 4;

             ViewState["count"] = pds.PageCount;

             pds.CurrentPageIndex = Pages - 1;

            

            //得到当前页和总也数

             this.lnkup.Enabled = true;

             this.lnkDwon.Enabled = true;

             if (pds.IsFirstPage)

             {

                 lnkup.Enabled = false;

             }

             if (pds.IsLastPage)

             {

                 lnkDwon.Enabled = false;

             }

             this.rptBook.DataBind();

        }

       



        //首页

        protected void lnkStart_Click(object sender, EventArgs e)

        {

            Pages = 1;

            PageShow();

        }

        //下一页

        protected void lnkup_Click(object sender, EventArgs e)

        {

            Pages--;

            PageShow();

        }

        //上一页

        protected void lnkDwon_Click(object sender, EventArgs e)

        {

            Pages++;

            PageShow();

        }

        //尾页

        protected void lnkLast_Click(object sender, EventArgs e)

        {

            Pages = int.Parse(ViewState["count"].ToString());

            PageShow();

        }

        #endregion



        #region Url分页

        public void URLPaged()

        {

            PagedDataSource pds = new PagedDataSource();

            BookInfoBll bookbll = new BookInfoBll();

          pds.AllowPaging = true;

            pds.PageSize = 4;

            List<BookInfo> lst = bookbll.GetAll();

            //List<BookInfo> list = lst.Skip((pds.PageSize) * (Pages - 1)).Take(pds.PageSize).ToList();

            pds.DataSource = lst;

            ViewState["count"] = pds.PageCount;

            //pds.VirtualCount = lst.Count;

            //pds.CurrentPageIndex = Pages - 1;

            //Response.Write(Pages);

            if (Request.QueryString["page"] != null)

            {

                Pages = int.Parse(Request.QueryString["page"].ToString());

            }

            pds.CurrentPageIndex = Pages - 1;

            //int pageTotal = (pds.VirtualCount + (pds.PageSize - 1)) / pds.PageSize;

            //hykLast.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + pageTotal;

            //hykStart.NavigateUrl = Request.CurrentExecutionFilePath + "?page=1"; 

            //hykUp.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + (Pages - 1);

            //hykDwon.NavigateUrl = Request.CurrentExecutionFilePath + "?page="+(Pages+1);

            //if (Pages == 1)

            //{

            //    hykUp.NavigateUrl = "";

            //}

            //if (Pages == pageTotal)

            //{

            //    hykDwon.NavigateUrl = "";

            //}

            if (!pds.IsFirstPage)

            {

                hykUp.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + (Pages - 1);

               hykStart.NavigateUrl=Request.CurrentExecutionFilePath;

            }

            if (!pds.IsLastPage)

            {

                hykDwon.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + (Pages + 1);

                hykLast.NavigateUrl =Request.CurrentExecutionFilePath+ "?page="+ ViewState["count"];

                

            }

            this.rptBook.DataSource = pds;

            this.DataBind();

        }

        #endregion