In Chapter 7, you'll consider all the control basics and look at simple content controls such as the Label and Button in more detail. But first, it's worth taking a detour to consider a few more sophisticated content controls: ScrollViewer, GroupBox, TabItem, and Expander. All of these controls are designed to help you shape large portions of your user interface. However, because these controls can only hold a single element, you'll usually use them in conjunction with a layout container.
In the previous chapter, you tried out several containers. However, none of them provided support for scrolling, which is a key feature if you want to fit large amounts of content in a limited amount of space. In WPF, ...