The following example shows how to create a TreeView where the TreeViewItem content contains DockPanel controls that have embedded content. The following example shows how to create a TreeView where an XmlDataProvider provides TreeViewItem content and a HierarchicalDataTemplate defines the appearance of the content. There is an example of TreeListBox in the Examples folder. The problem with wrapping it is the TreeViews properties are not exposed and some. Itd be better to make a control that inherits TreeView and define a new template for it. There are automatic ways that WPF tries to look up the correct DataTemplate, mostly based on the templates DataType being the same as the object it is trying to template. The following is a screenshot of the example. The built-in WPF TreeView control does not allow for multi selection. The example shows that with the use of HierarchicalDataTemplate, you can easily display list data that contains other lists. Each Division has a Name and a collection of Team objects, and each Team object has a Name. The following example show how to define child elements of a TreeViewItem by defining Items that are Button controls. Each League object has a Name and a collection of Division objects. Rate me: 4.95/5 (107 votes) CPOL 15 min read 633.5K 18.5K 302 157. There is only one Project loaded at a time if that makes a difference - your example uses Projects. The following example shows how to explicitly define TreeViewItem content by setting the Header property to a text string. Ask Question Asked 14 years, 1 month ago. What if you have more than two levels This is where it's vital to understand exactly how the HierarchicalDataTemplates work. A TreeViewItem can also have TreeViewItem controls as its child elements and you can define these child elements by using the Items property. There are many examples of using the Windows Presentation Foundataion (WPF) TreeView that you can find on the Web, however, most of them only show you how to go to two levels. The Header property of the TreeViewItem contains the content that the TreeView displays for that item. This topic provides examples of these concepts. You can explicitly define the TreeView content or a data source can provide the content. This example shows how to create simple or complex TreeView controls.Ī TreeView consists of a hierarchy of TreeViewItem controls, which can contain simple text strings and also more complex content, such as Button controls or a StackPanel with embedded content.
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