#Treeview wpf example how to#
#Treeview wpf example full#

We tell the HierarchicalDataTemplate to use the Children property to traverse the hierarchy The TreeViewControl is a navigation single-column control that displays self-referenced and hierarchical data.We set the ItemsSource of the TreeView to our top-level property (a list of Person, which contains one person). EO.Wpf TreeView derives from ItemsControl, so you can uses the ItemsControls ItemsSource property to populate the TreeView.Die Elemente in einem TreeView Können auch virtualisiert werden, um die Leistung zu verbessern. There are several things to note about this XAML fragment: Um ein TreeViewItem zu finden, das ein bestimmtes Datenobjekt enthält, müssen Sie jede Ebene des TreeView durchlaufen. To wire this hierarchical data source up to a TreeView control, we use a HierarchicalDataTemplate in XAML, as shown below. Public Person(string name, int birth, int? death) (INPCBase is just a class that implements INotifyPropert圜hanged and includes a SetField method). Let’s say that we have a Person object that looks like the following.

#Treeview wpf example how to#

Learn how to use its features, events, and properties in the developer documentation.

The following example shows how to create a TreeView where the TreeViewItem content contains DockPanel controls that have embedded content.Below is a very simple example of how you might use a TreeView control to display a set of hierarchical data. TreeListView Class is a part of the DevExpress WPF Controls library that allows you to display hierarchical data in a tree-like structure with columns. Expression Blend Support: All UI for WPF controls. Read more about this in the UI Automation Support article.

#Treeview wpf example full#

The following example shows how to create a TreeView where an XmlDataProvider provides TreeViewItem content and a HierarchicalDataTemplate defines the appearance of the content. UI Automation Support: As the WPF platform exposes a full accessibility tree through UIA (UI Automation), Telerik UI for WPF fully support UI Automation for UI elements access/manipulation, screen readers and other accessibility tools. The following example show how to define child elements of a TreeViewItem by defining Items that are Button controls. The following example shows how to explicitly define TreeViewItem content by setting the Header property to a text string. A TreeViewItem can also have TreeViewItem controls as its child elements and you can define these child elements by using the Items property.

It needs a Children property of type ObservableCollection.

It needs these three things: It must implement INotifyPropert圜hanged. Create a view model class (I've called it CheckableItem here) for your tree view item data. The Header property of the TreeViewItem contains the content that the TreeView displays for that item. This is remarkably straightforward to do, once you know how. It also shows how to expand nodes down to the selected item. This topic provides examples of these concepts. This sample shows how to two-way-bind to the SelectedItem property of a WPF or Silverlight TreeView. 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.