像Asp一样轻松分页显示数据(C#)

2024-05-04 11:06:35

字体：大中小

来源：转载

供稿：网友

代码如下：

<%@ page language="c#" debug="true" %>
<%@import namespace="system.data"%>
<%@import namespace="system.data.sqlclient"%>
<script language="c#" runat="server">
int record_per_page;//定义每页显示记录数
int npagecount;//定义总页数
int nreccount;//定义总记录数
int npage;//定义当前页
void page_load(object src,eventargs e){
//取得当前页数值，并判断
if(request["pagesize"]==null)
record_per_page=9;
else
record_per_page=convert.toint32(request["pagesize"]);
//连接数据库
sqlconnection conn;
conn =new sqlconnection(configurationsettings.appsettings["strconn"]);
conn.open();

//执行sql语句
string connstr="select id,name,demo,pic from download where classid=23 or classid=24 order by time desc";
sqldataadapter odadapt = new sqldataadapter(connstr,conn);
dataset ds = new dataset();
odadapt.fill(ds);
datatable dt = ds.tables[0];
//获得总记录数
nreccount = dt.rows.count;

//判断是否存在数据记录
if(nreccount > 0){
//确定数据记录要显示的页面数
npagecount=nreccount/record_per_page;
if(nreccount % record_per_page > 0)
npagecount ++;
if(npage < 1)
    npage = 1;
if(npage > npagecount)
    npage = npagecount;
//将页数显示到屏幕上，并作链接
for(i=1;i<=npagecount;i++){
   html=html+"<a href='mblist.aspx?page="+i+"&id="+classid+"&classname="+request.params["classname"]+"pagesize="+record_per_page+"'>";
   if(i==npage)
   html=html+"<b>"+i+"</b>";
   else
   html=html+i;
   html=html+"</a> ";
}
pagelist.innerhtml=html;
html="";
//确认当前页面的开始记录和终止记录
int nstart = record_per_page * (npage - 1);
int nend = nstart + record_per_page - 1;
if(nend > nreccount - 1)
    nend = nreccount - 1;
//在屏幕中输出记录
html="<table border='0' cellpadding='0' cellspacing='0' style='border-collapse: collapse' bordercolor='#111111' width='95%' height='139' bgcolor='#ffffff'><tr>";
int j=0;
for(i=nstart;i<=nend;i++){
    html+="<td align=center height=180 ><table border='0' cellpadding='0' cellspacing='0' style='border-collapse: collapse' bordercolor='#111111' width='145'><tr><td align=center><img src='http://bbs.wrclub.net/templates/"+dt.rows[i]["demo"].tostring().trim()+"/"+dt.rows[i]["pic"].tostring().trim()+"' height=143 width=140 border=0 alt='"+dt.rows[i]["name"].tostring().trim()+"'></td></tr><tr><td width='100%' background='images/mbbg.gif'><table border='0'cellpadding='0'cellspacing='0'width='100%'><tr><td width='50%'><a href='http://bbs.wrclub.net/templates/"+dt.rows[i]["demo"].tostring().trim()+"/' target='_blank'><img src='http://www.pushad.com/info/images/view.gif' border=0></a></td><td width='50%' align=right><a href='mbdown.aspx?id="+dt.rows[i]["id"]+"' target=_blank><img src='http://www.pushad.com/info/images/down.gif' border=0></a></td></tr></table></td></tr></table></td>";
    j++;
    if(j%3==0)
    html+="</tr><tr>";
}
html+="</tr></table>";
mblist.innerhtml=html;
html="";
}
conn.close();
}
</script>

<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title><%=request.params["classname"]%>:网人俱乐部</title>
<meta name="keywords" content="学习,免费资源,asp,jsp,flash,photoshop,社区,论坛,同学录,电子图书,网站建设,宣传,推广,聊天,数据库,经验心得,游戏,game,电子超市,网人交流论坛,插件,下载">
<meta name="description" content="提供网站建设、开发方面的学习资料、经验心得，同时提供免费的电子书籍、网站免费资源、制作工具、插件、滤镜，网站还有网上电子超市、论坛、网人交流论坛">
<link rel="stylesheet" type="text/css" href="style.css"><link rel="shortcut icon" href="favicon.ico">
</head>
<body topmargin="0" leftmargin="0"><form runat=server action="?id=22&classname=模板中心">

<div align="center">
<center>
    <table border="0" cellpadding="0" cellspacing="0" bordercolor="#111111" width="778" height="92">
      <tr>
        <td width="375" height="92" rowspan="2"><img src="images/wrclub_l<%=request.params["id"]%>.jpg" width="375" height="92">
        </td>
      <td height="24" width="403" background="images/bg3.gif"> <span id="myclass" runat="server"></span></td>
    </tr>
    <tr>
        <td width="403" height="68" valign="top">
           </td>
    </tr>
</table>
    <table width="778" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td height="20" background="http://www.pushad.com/info/images/bg5.gif"><img src="http://www.pushad.com/info/images/bg5.gif" width="7" height="24"></td>
      </tr>
    </table>
    <table width="778" border="0" cellpadding="0" cellspacing="0" bgcolor="#d8d8d8">
      <tr>
          <td width="562" height="400" align="center" valign="top">
    <table width="95%" border="0" cellspacing="0" cellpadding="0" bgcolor="#ffffff">
              <tr>
                <td width="37%">  <img src="http://www.pushad.com/info/images/favorites.gif" width="16" height="16">
                  <a href="default.aspx">网人俱乐部</a> -- 模板中心</td>
                <td width="63%" align=center>·共有模板 <%=nreccount%> 个 ·共有 <%=npagecount%>
                  页 ·每页显示
            <select id=select21 size=1 name="pagesize" onchange="var url=this.options[this.selectedindex].value; if(url!='') {self.location=url;} else {this.selectedindex=0;}" tabindex="1">
            <option value="?id=22&classname=模板中心&page=<%=npage%>&pagesize=9" ><font face="arial">9 </font></option>
            <option value="?id=22&classname=模板中心&page=<%=npage%>&pagesize=12"><font face="arial">12</font></option>
            <option value="?id=22&classname=模板中心&page=<%=npage%>&pagesize=15"><font face="arial">15</font></option>
            <option value="?id=22&classname=模板中心&page=<%=npage%>&pagesize=18"><font face="arial">18</font></option>
            <option value="?id=22&classname=模板中心&page=<%=npage%>&pagesize=21"><font face="arial">21</font></option></select>个</td>
</tr>
</table>
<span id="mblist" runat="server"></span>
            <table width="95%" border="0" cellspacing="0" cellpadding="0" bgcolor="#ffffff">
              <tr>
                <td height="16" align=center> <span id="pagelist" runat="server" ></span> </td>
              </tr>
</table><br>
</td>
        <td width="216" valign="top">
          <table width="202" height="100%" border="0" cellpadding="0" cellspacing="0">
            <tr>
              <td width="5" height="100%" valign="top" background="images/yy_bg.gif"><img src="http://www.pushad.com/info/images/yy1_bg.gif" width="8" height="16"></td>
              <td width="193" height="100%" bgcolor="#ffffff" valign="top">
     <table width="100%" border="0" cellspacing="0" cellpadding="0" height="24"

bordercolor="#111111">
<tr>
    <td align="center">下载排行</td>
</tr>
</table><br>
<span id="downhot" class="p1" runat="server"></span></td>
              <td width="5" height="100%" valign="top" background="images/yy_bg1.gif"><img src="http://www.pushad.com/info/images/yy1_bg1.gif" width="9" height="15"></td>
            </tr>
          </table></td>
      </tr>
    </table>
        <table border="0" cellpadding="0" cellspacing="0" bordercolor="#111111" width="778" height="1">
      <tr>
        <td background="images/nod0a.gif"></td>
      </tr>
    </table>
    
</center>
</div></form>
</body></html>