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copied!<p>One way to do this is to read the XML and convert into objects before doing databinding with HierarchicalDataTemplates.</p> <p>Note that in the code below I don't do much error checking. I copied your XML directly into XMLFile1.xml.</p> <p>MainWindow.xaml.cs:</p> <pre><code>using System.Collections.Generic; using System.Linq; using System.Windows; using System.Xml.Linq; namespace WpfApplication { public class Attributes { public string Ref { get; set; } public string Name { get; set; } public override string ToString() { return Ref + " " + Name; } } public class Section { public Attributes Attributes { get; set; } public List<SubSection> SubSections { get; set; } } public class SubSection { public Attributes Attributes { get; set; } public List<Item> Items { get; set; } } public class Item { public Attributes Attributes { get; set; } public string Description { get; set; } public string Units { get; set; } public string Formula { get; set; } } /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); LoadFile(); DataContext = this; } public List<Section> Sections { get; private set; } private void LoadFile() { XDocument xmlFile = XDocument.Load(@"XMLFile1.xml"); var q = from section in xmlFile.Descendants("Section") select new Section() { Attributes = new Attributes() { Ref = section.Attribute("ref").Value, Name = section.Attribute("name").Value }, SubSections = new List<SubSection>(from subsection in section.Descendants("Subsection") select new SubSection() { Attributes = new Attributes() { Ref = subsection.Attribute("ref").Value, Name = subsection.Attribute("name").Value }, Items = new List<Item>(from item in subsection.Descendants("Item") select new Item() { Attributes = new Attributes() { Ref = item.Attribute("ref").Value, Name = item.Attribute("name").Value }, Description = item.Element("Description").Value, Formula = item.Element("Formula").Value, Units = item.Element("Units").Value }) }) }; Sections = new List<Section>(q); } } } </code></pre> <p>The in the XAML file (MainWindow.xaml):</p> <pre><code><Window x:Class="WpfApplication.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:src="clr-namespace:WpfApplication" Title="MainWindow" Height="350" Width="525"> <Grid> <Grid.Resources> <HierarchicalDataTemplate DataType = "{x:Type src:Section}" ItemsSource = "{Binding Path=SubSections}"> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Path=Attributes}"/> </StackPanel> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType = "{x:Type src:SubSection}" ItemsSource = "{Binding Path=Items}"> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Path=Attributes}"/> </StackPanel> </HierarchicalDataTemplate> <DataTemplate DataType = "{x:Type src:Item}"> <StackPanel Orientation="Horizontal"> <TextBlock Text="{Binding Path=Attributes}"/> <TextBlock Text=" " /> <TextBlock Text="{Binding Path=Description}" /> <TextBlock Text=" " /> <TextBlock Text="{Binding Path=Formula}" /> <TextBlock Text=" " /> <TextBlock Text="{Binding Path=Units}" /> </StackPanel> </DataTemplate> </Grid.Resources> <TreeView ItemsSource="{Binding Sections}" /> </Grid> </Window> </code></pre> <p>You should see something like this: <img src="https://i.stack.imgur.com/gRsal.png" alt="MainWindow"></p> <p>You can find out more about hierarchical data templates on <a href="http://msdn.microsoft.com/en-us/library/system.windows.hierarchicaldatatemplate.aspx" rel="nofollow noreferrer">MSDN</a>.</p>

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