Pro WPF in C# 2010: Windows Presentation Foundation in .NET 4

22.2. The TreeView

The TreeView is a Windows staple, and it's a common ingredient in everything from the Windows Explorer file browser to the .NET help library. WPF's implementation of the TreeView is impressive, because it has full support for data binding.

The TreeView is, at its heart, a specialized ItemsControl that hosts TreeViewItem objects. But unlike the ListViewItem, the TreeViewItem is not a content control. Instead, each TreeViewItem is a separate ItemsControl, with the ability to hold more TreeViewItem objects. This flexibility allows you to create a deeply layered data display.

NOTE

Technically, the TreeViewItem derives from HeaderedItemsControl, which derives from ItemsControl. The HeaderedItemsControl class adds a Header property, ...