WPF and Silverlight have been out for a while now, and the number of controls available for these platforms is surprising. Consider this rather comprehensive list of Silverlight controls by Tim Heuer with at least 17 vendors and over 160 controls. Or this list of around 30 tools and libraries for WPF.
If you need to quickly check out and try out many of the available controls, Mike Taulty’s Control Browser is here to help. It shows all the built-in controls for both platforms as well as the controls included in the toolkit and many of the 3rd-party libraries available. It’s a great little click-once app, so head over to Mike’s Blog to read about it or click here to install.