.NET 自定义用户控件分页

<%if(total>0&&totalPage>0){%>
<div class="dataTables_info">
    共 <strong><%=total %></strong> 条
    <label>
        每页显示
        <select class="select" style="width: 50px" onchange="javascript:location.href='<%=pageUrl %>pagesize='+this.options[this.options.selectedIndex].value" >
            <option value="10" <%=(pageSize==10)?"selected='selected'":"" %>>10</option>
            <option value="20" <%=(pageSize==20)?"selected='selected'":"" %>>20</option>
            <option value="50" <%=(pageSize==50)?"selected='selected'":"" %>>50</option>
            <option value="100" <%=(pageSize==100)?"selected='selected'":"" %>>100</option>
            <option value="200" <%=(pageSize==200)?"selected='selected'":"" %>>200</option>
            <option value="300" <%=(pageSize==300)?"selected='selected'":"" %>>300</option>
        </select>
        条</label>
</div>
<div class="dataTables_paginate paging_simple_numbers">
    <%if(pageIndex>1){ %>
        <a class="paginate_button" href="<%=pageUrl %>page=1&pagesize=<%=pageSize %>&total=<%=total %>">首页</a>
        <a class="paginate_button" href="<%=pageUrl %>page=<%=pageIndex-1%>&pagesize=<%=pageSize %>&total=<%=total %>">上一页</a>
    <%} %>

    <%for (int i = 1; i <= totalPage; i++){if (Math.Abs(pageIndex - i) <= 2 || (pageIndex <= 2 && i <= 5) || ((totalPage - pageIndex) < 2) && (totalPage - i) < 5){ %>
        <%if (i == pageIndex){ %>    
            <span><a class="paginate_button current"><%=i %></a></span>
        <%}else{ %>
            <a class="paginate_button" href="<%=pageUrl %>pagesize=<%=pageSize %>&page=<%=i %>&total=<%=total %>"><%=i %></a>
        <%} %>
    <%}}%>

    <%if(pageIndex<totalPage){ %>
        <a class="paginate_button" href="<%=pageUrl %>page=<%=pageIndex+1 %>&pagesize=<%=pageSize %>&total=<%=total %>">下一页</a>    
        <a class="paginate_button" href="<%=pageUrl %>page=<%=totalPage %>&pagesize=<%=pageSize %>&total=<%=total %>">末页</a>
    <%} %>
</div>
<%} %>

using System;
using System.Collections.Generic;

namespace FishAdmin.usercontrols
{
    public partial class UC_Pagination : System.Web.UI.UserControl
    {
        /// <summary>
        /// 当前页码
        /// </summary>
        protected int pageIndex;
        /// <summary>
        /// 每页显示数量
        /// </summary>
        protected int pageSize;
        /// <summary>
        /// 共计多少页
        /// </summary>
        protected int totalPage;
        /// <summary>
        /// 总数据数量
        /// </summary>
        protected int total;
        /// <summary>
        /// 页面路径
        /// </summary>
        protected string pageUrl;

        protected void Page_Load(object sender, EventArgs e)
        {

        }

        public void ShowPage(int _pageIndex, int _pageSize, int _total, Dictionary<string, string> _dicParam = null, string _pageUrl = "")
        {
            if (_total <= 0)
                return;
            if (_pageIndex <= 1)
                _pageIndex = 1;
            if (_pageSize <= 0)
                _pageSize = 10;

            if (string.IsNullOrEmpty(_pageUrl))
                _pageUrl = Request.Url.AbsolutePath;

            if (_pageUrl.Contains("?"))
                _pageUrl += "&";
            else
                _pageUrl += "?";
            if (null != _dicParam)
            {
                string strParam = string.Empty;
                foreach (KeyValuePair<string, string> kv in _dicParam)
                {
                    if (string.IsNullOrEmpty(kv.Key) || string.IsNullOrEmpty(kv.Value))
                        continue;
                    strParam += kv.Key + "=" + kv.Value + "&";
                }
                strParam = strParam.Trim('&');
                if (!string.IsNullOrEmpty(strParam))
                    _pageUrl += strParam + "&";
            }

            this.pageIndex = _pageIndex;
            this.pageSize = _pageSize;
            this.total = _total;
            this.totalPage = _total % _pageSize == 0 ? _total / _pageSize : _total / _pageSize + 1;
            this.pageUrl = _pageUrl;
        }
    }
}

  protected void Page_Load(object sender, EventArgs e)
        {
            base.CheckPagePermission("18_Access");
            if (!IsPostBack)
            {
           ShowData();
            }
        }

        private void ShowData()
        {
            if (roomtype < 100)
                return;

            DataTable dt = null;
            CDatabase db = new CDatabase("FPlatformDB");
            try
            {
                dt = FishAdo.p_oa_fish_config_list(roomtype, fishtype, page, pagesize, ref total, db);
            }
            catch (Exception ex)
            {
                CLog.WriteLog("fish_config_list.aspx->ShowData Message:{0},StackTrace:{1}", ex.Message, ex.StackTrace);
            }
            finally { db.close(); }
           //此处表示为将dt 数据赋值给repeart  控件
            BindHelper.BindData(dt, this.repList);
           
           //分页所传递参数
            Dictionary<string, string> dicParam = new Dictionary<string, string>();
            dicParam.Add("roomtype", roomtype.ToString());
            dicParam.Add("fishtype", fishtype.ToString());
            
           //page  页码
           //pahesize  每页数量
           // total  总数
           //UC_Pagination  为前端分页用户控件名称，ShowPage 为用户
           控件定义的方法名
            this.UC_Pagination.ShowPage(page, pagesize, total, dicParam);
        }