ASP.NET进度条 6篇文章+代码(six articles about create Progress Bar in ASP.NET)

There are also some good examples and articles in CodeProject:
 
ProgressBar for ASP.NET

http://www.codeproject.com/KB/aspnet/ProgressBar_for_ASPNET.aspx
 
Progess Bar Control for ASP.NET

http://www.codeproject.com/KB/custom-controls/aspprogressbar.aspx
 
Progressbar user control in ASP.net 2.0

http://www.codeproject.com/KB/aspnet/Progressbar_user_control.aspx
 
Real-time web-styled ProgressBar control

http://www.codeproject.com/KB/aspnet/WebProgressBar.aspx
 
In Page Progress with Cancel Example

http://www.codeproject.com/KB/aspnet/InPageProgressWithCancel.aspx
 
Progressbar for long running scripts

http://www.codeproject.com/KB/custom-controls/Progressbar.aspx
 
Thanks.