上一篇只是备份了下代码，这次是可以独立运行的demo。
demo模拟的是发送多封邮件过程中进度条的显示。其中图片设计的不太规范，所以js控制进度条移动的代码有点乱，这个大家可以替换成自己的，这里只是演示作用。
进度条动态增长的原理是：一个中间扣空的酒瓶子图片，这个图片下面放另外一张图片，移动下层图片以实现进度条增长效果。

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text;
using System.Threading;
namespace guagedemo
{
    /// <summary>
    /// guagedemo 的摘要说明。
    /// </summary>
    public class guagedemo : System.Web.UI.Page
    {
        public StringBuilder textpile=new StringBuilder(@"<table><tr><td background=images/titlebg.gif height=32 class=t2 width=100%>&nbsp;&nbsp;发送邮件</td></tr><tr><td><table width=100% border=0 cellspacing=0 cellpadding=0><tr><td width=1 bgcolor=#ADDB52></td><td width=561 valign=top><table width=100% border=0 cellspacing=0 cellpadding=0 background=images/tablebg.gif><tr><td height=6 colspan=2></td></tr>");
        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            objMailclass mail=new objMailclass();
            mail.mail1=new objMail[3];
            mail.mail1cx=3;
            mail.mail2=new objMail[3];
            mail.mail2cx=3;
            mail.mail3=new objMail[3];
            mail.mail3cx=3;
            mail.mail1[0]=new objMail();
            mail.mail1[0].strSubject="类别1邮件：邮件1";
            mail.mail1[1]=new objMail();
            mail.mail1[1].strSubject="类别1邮件：邮件2";
            mail.mail1[2]=new objMail();
            mail.mail1[2].strSubject="类别1邮件：邮件3";
            mail.mail2[0]=new objMail();
            mail.mail2[0].strSubject="类别2邮件：邮件1";
            mail.mail2[1]=new objMail();
            mail.mail2[1].strSubject="类别2邮件：邮件2";
            mail.mail2[2]=new objMail();
            mail.mail2[2].strSubject="类别2邮件：邮件3";
            mail.mail3[0]=new objMail();
            mail.mail3[0].strSubject="类别3邮件：邮件1";
            mail.mail3[1]=new objMail();
            mail.mail3[1].strSubject="类别3邮件：邮件2";
            mail.mail3[2]=new objMail();
            mail.mail3[2].strSubject="类别3邮件：邮件3";
            intipagetop(mail);
        }
        输出进度条显示
        private void intipagetop(objMailclass maill)
        {
                进度条初始化
                process("-70","-110","");
                Thread.Sleep(200);
                process("-110","-156","");
                Thread.Sleep(200);    
                发送邮件
        }
        
        public class objMail
        {
            public string strMail;
            public string strSubject;
            public string strMailType;
        }
        public class objMailclass
        {
            public objMail[] mail1;
            public int mail1cx=0;
            public objMail[] mail2;
            public int mail2cx=0;
            public objMail[] mail3;
            public int mail3cx=0;
        }
        Web 窗体设计器生成的代码
    }
}

demo下载