Lance Zhang's Blog

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.