How can I make an endless progressbar in WinForms?

Question

I don't know how long an action could take and I want to display a progress bar to the user in a dialog box. I've tried using System.Windows.Forms.ProgressBar but it doesn't seem to support it.

An example of what I'd want is the progress bar that windows shows you when it's looking for new drivers on the internet. It's just got three or four 'bars' going back and forth marquee style on the progress bar.

How can I do this?

Answer 1

System.Windows.Forms.ProgressBar has a property called Style. Setting Style to Marquee will achieve the effect your looking for.

EDIT: Divo points out the Marquee Style is only available on

Windows XP Home Edition, Windows XP Professional x64 Edition, Windows Server 2003

The comments provide even more information indicating that this appears to work everywhere as long as you're using .NET 2.0 or higher.

Answer 2

Have you tried setting the Style property of the System.Windows.Forms.ProgressBar to Marquee?

However, surprisingly, this property is only available on the following platforms (according to MSDN):

Windows XP Home Edition, Windows XP Professional x64 Edition, Windows Server 2003

Might be that the documentation has not been updated to Vista though. Anyone knows about a limitation on Vista?

EDIT: As posted in another comment the documentation seems to be wrong with respect to the supported platforms. Should be working on Vista as well as Windows 7.