Items controls are vital to understand for just about any XAML app. It’s hard to imagine a nontrivial XAML app that doesn’t use both content controls and items controls. Unlike content controls, however, there’s a lot to learn about items controls! A recurring theme throughout this chapter is the importance of data binding if you’re working with a sizable or dynamic list of items. Therefore, items controls will be revisited when it’s time to examine data binding in depth.