C#一个显示分页页码类

在显示时当前页码会自动据中。并可自定义分类链接代码

using System;

namespace bookshopcn.Service

{

/// <summary>

/// Page 的摘要说明。

/// </summary>

public class Pager

{

public Pager(){}

protected static int _ButtonCount = 11;

protected static string _NextPage = "<a href={0}>下一页</a>";

protected static string _LinkUrl = "?page={0}";

protected static string _LastPage = "<a href={0}>上一页</a>";

/// <summary>

/// 下一页链接

/// </summary>

public static string NextPage

{

get{return _NextPage;}

set{_NextPage = value;}

}

/// <summary>

/// 上一页链接

/// </summary>

public static string LastPage

{

get{return _LastPage;}

set{_LastPage = value;}

}

/// <summary>

/// 设置时为格式

/// </summary>

public static string NextPageText

{

get{return _NextPage;}

set{_NextPage = value;}

}

/// <summary>

/// 显示按钮总数

/// </summary>

public static int BottonCount

{

get{return _ButtonCount;}

set{_ButtonCount = value;}

}

/// <summary>

/// 返回页面的分页信息

/// </summary>

/// <param name="_RecordCount">记录总数</param>

/// <param name="_PageSize">分页长度</param>

/// <param name="_PageIndex">当前页</param>

/// <returns></returns>

public static string PageInfo(int _RecordCount,int _PageSize,int _PageIndex,string link)

{

string Firstpage = string.Format("<a href="+link+">[首页]</a>","1");

string pageinfo = "共有{0}页 / 当前第{1}页 "+Firstpage;

string pagenext = " <a href="+link+"><b>{0}</b></a> ";

int PageCount = _RecordCount / _PageSize; // 页数合计

PageCount = PageCount <= 0?1:PageCount;

pageinfo = string.Format(pageinfo,PageCount.ToString(),_PageIndex.ToString());

string LastPage = string.Format("<a href="+link+">[末页]</a>",PageCount);

int n = _ButtonCount/2; //左右显示个数

int StartPage = _PageIndex - n;

int EndPage = _PageIndex + n;

_LastPage = string.Format(_LastPage,link); //上一页

_LastPage = _PageIndex-1>1?string.Format(_LastPage,(_PageIndex-1).ToString()):string.Format(_NextPage,"1");

_NextPage = string.Format(_NextPage,link); //下一页

_NextPage = _PageIndex+1<=PageCount?string.Format(_NextPage,_PageIndex.ToString()):string.Format(_NextPage,PageCount.ToString());

if(EndPage > PageCount )

{

StartPage = (_PageIndex - n) - (EndPage-PageCount);

EndPage = PageCount ;

}

if(StartPage < 1 )

{

EndPage = _ButtonCount;

StartPage = 1 ;

}

for(int i = StartPage;i<=EndPage;i++)

{

if(i != _PageIndex)

pageinfo += string.Format(pagenext,i);

else

pageinfo += " <b>" + i.ToString() + "</b> ";

}

pageinfo += LastPage;

return pageinfo;

}

}

}