Mark Tree node expandable : TreeView « Windows Presentation Foundation « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows Presentation Foundation
3. TreeView

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      HorizontalAlignment="Center" VerticalAlignment="Center">

<TreeView>
  <TreeViewItem Header="A" IsExpanded="True">
    <TreeViewItem Header="B" />
    <TreeViewItem Header="C" IsExpanded="True">
      <TreeViewItem Header="D" />
      <TreeViewItem Header="E" />
    </TreeViewItem>
    <TreeViewItem Header="F" />
  </TreeViewItem>
  <TreeViewItem IsExpanded="True">
    <TreeViewItem.Header>
      <StackPanel Orientation="Horizontal">
        <Ellipse Fill="Blue" Width="15" Height="15" />
        <TextBlock Text="Third top-level item" />
        <Ellipse Fill="Blue" Width="15" Height="15" />
      </StackPanel>
    </TreeViewItem.Header>
    <TreeViewItem Header="Child a" />
    <TreeViewItem Header="Child b" />
    <TreeViewItem Header="Child c" />
  </TreeViewItem>
</TreeView>
</Page>

24.51.TreeView
	24.51.1.	TreeView uses SelectedValuePath property to provide a SelectedValue for the SelectedItem.
	24.51.2.	TreeView with DataSource
	24.51.3.	TreeView And TreeViewItem
	24.51.4.	Create a Tree and add children
	24.51.5.	Add Ellipse, TextBlock to a Tree
	24.51.6.	Mark Tree node expandable
	24.51.7.	Bind a TreeView to a data source and use DataTemplate objects to customize the TreeView.
	24.51.8.	Handles the Selected event for all TreeViewItems
	24.51.9.	Set TreeView with TreeViewItem
	24.51.10.	View and Select Items Using a Tree
	24.51.11.	Get selected tree node item