.net教程：为.text blog 添加 计数器
[size=3]为.text blog 添加 计数器
[ 来源：csdn | 作者：未知 | 时间：2006-4-15 7:17:35 | 浏览： 826人次 ]
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<%@ control language="c#" classname="dottextblogcounter" inherits="dottext.web.ui.controls.basecontrol"%> <%@import namespace="system.data" %><%@import namespace="system.data.sqlclient" %><%@import namespace="dottext.framework.data"%> <script runat="server">// dottextblogcounter created on 4/25/2005 by://*daqingshu http://blog.csdn.net/daqingshu /// <summary>/// use session or cookie?/// </summary>void page_load(object sender, system.eventargs e){ string number = ""; string strsql = ""; string conn = dottext.framework.providers.dbprovider.instance().connectionstring; httpcookie oldcookie = request.cookies["counter"]; if(oldcookie == null)//if cookie exist,do not count { httpcookie cookie = new httpcookie("counter"); datetime dtnow = datetime.now; timespan tsminute = new timespan(0, 1, 0, 0);//cookie expire time 1 hour cookie.expires = dtnow + tsminute; response.cookies.add(cookie); strsql = "update blog_config set pagevisitcount = pagevisitcount + 1"; sqlhelper.executenonquery(conn, commandtype.text, strsql, null); } strsql = "select pagevisitcount from blog_config where blogid = " + convert.toint32(currentblog.blogid); sqldatareader rdr = sqlhelper.executereader(conn, commandtype.text, strsql, null); if(rdr.read()){ number = rdr[0].tostring(); } rdr.close(); if(number.length <= 8) { for(int i = 8; i >= number.length; --i) { number = "0" + number; } } numbertopicture(number);} private void numbertopicture(string number){ system.web.ui.webcontrols.literal literal1 = new literal(); system.web.ui.webcontrols.literal literal2 = new literal(); literal1.text = "您是第"; phimage.controls.add(literal1); if(number.length > 0) { for(int i = 0; i < number.length; ++i) { stringbuilder strimage = new stringbuilder();//maybe i missing the system.text namespace if it doesn't work strimage.append("~/images/counter/eggblue/"); strimage.append(number[i]); strimage.append(".gif"); system.web.ui.webcontrols.image image = new system.web.ui.webcontrols.image(); image.id = "image" + i.tostring(); image.imageurl = strimage.tostring(); phimage.controls.add(image); } } literal2.text = "位访客。"; phimage.controls.add(literal2); } </script><asp:placeholder runat="server" id="phimage"></asp:placeholder>
的确是个很简单很小的功能，还修改了数据库结构，在表blog_config里面添加pagevisitcount字段，使用的时候，需要修改pagetemplate.ascx文件，在里面添加
<%@ register tagprefix="overflow" tagname="dottextblogcounter" src="~/skins/dottextblogcounter.ascx" %>合适的位置添加<overflow:dottextblogcounter id="dottextblogcounter" runat="server"></overflow:dottextblogcounter>
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