I don't agree with "Devexpress has the widest range". ComponentOne has a wide range of controls for WinForms, WPF, Web, and mobile. Their WinForms controls were recently updated to support touch. Here in the US, Telerik's Kendo web controls are getting a lot of attention. I've also had lots of license issues with DevExpress, which has prompted us to drop them from our projects.
>In that case - depending on your personal pref - either binge-watch stuff or build something with devexpress. Devexpress has the widest range, so you can build almost any small (# tables) app for any targeted GUI, giving you a working example you created and a blueprint to track differences. As the dichotomy of WPF and Winform does not seem to be exclusive, I think Rick has the better idea of getting a web version first (although I probably dislike browser apps more than him) - you can still build a desktop one later.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer