I want sub directories In my code inTreeview Infragistics

Question

How to get the Sub directories also In my code. I am using Silverlight Application.Please send me the code.

 

XML File:

 

<?xml version="1.0" encoding="utf-8" ?>

<books>

<book Title="The Elegant Universe" Author="Brian Greene" UnitPrice="15.95" Url="http://www.amazon.com/Elegant-Universe-Superstrings-Dimensions-Ultimate/dp/0393046885" ReleaseDate="02/01/1999" >

<chapter Title="Tied Up with String">

<chapter Title="Third level"></chapter>

</chapter>

<chapter Title="Space, Time, and the Eye of the Beholder" />

<chapter Title="Of Warps and Ripples" />

<chapter Title="Microscopic Weirdness" />

<chapter Title="The Need for a New Theory: General Relativity vs. Quantum Mechanics" />

<chapter Title="Nothing but Music: The Essentials of Superstring Theory" />

<chapter Title="The &quot;Super&quot; in Superstrings" />

<chapter Title="More Dimensions Than Meet the Eye" />

<chapter Title="The Smoking Gun: Experimental Signatures" />

<chapter Title="Quantum Gravity" />

<chapter Title="Tearing the Fabric of Space" />

<chapter Title="Beyond Strings: In Search of M-Theory" />

<chapter Title="Black Holes: A String/M-Theory Perspective" />

<chapter Title="Reflections on Cosmology" />

<chapter Title="Prospects" />

</book>

<book Title="Dive Into Python" Author="Mark Pilgrim" UnitPrice="39.99" Url="http://www.amazon.com/Dive-Into-Python-Mark-Pilgrim/dp/1590593561" ReleaseDate="07/19/2004" >

<chapter Title="Installing Python" />

<chapter Title="Your First Python Program" />

<chapter Title="Native Datatypes" />

<chapter Title="The Power of Introspection" />

<chapter Title="Objects and Object-Orientation" />

<chapter Title="Exceptions and File Handling" />

<chapter Title="Regular Expressions" />

<chapter Title="HTML Processing" />

<chapter Title="XML Processing" />

<chapter Title="Scripts and Streams" />

<chapter Title="HTTP Web Services" />

<chapter Title="SOAP Web Services" />

<chapter Title="Unit Testing" />

<chapter Title="Test-First Programming" />

<chapter Title="Refactoring" />

<chapter Title="Functional Programming" />

<chapter Title="Dynamic Functions" />

<chapter Title="Performance Tuning" />

</book>

<book Title="The Selfish Gene (30th Anniversary Edition)" Author="Richard Dawkins" UnitPrice="15.95" Url="http://www.amazon.com/Selfish-Gene-Anniversary-Introduction/dp/0199291152" ReleaseDate="05/25/2006" >

<chapter Title="Why are people?" />

<chapter Title="The replicators" />

<chapter Title="Immortal coils" />

<chapter Title="The gene machine" />

<chapter Title="Aggression: stability and the selfish machine" />

<chapter Title="Genesmanship" />

<chapter Title="Family planning" />

<chapter Title="Battle of the generations" />

<chapter Title="Battle of the sexes" />

<chapter Title="You scratch my back, I'll ride on yours" />

<chapter Title="Memes: the new replicators" />

<chapter Title="Nice guys finish first" />

<chapter Title="The long reach of the gene" />

</book>

<book Title="The Ideological Origins of the American Revolution (Enlarged Edition)" Author="Bernard Bailyn" UnitPrice="24.00" Url="http://www.amazon.com/Ideological-Origins-American-Revolution/dp/0674443020" ReleaseDate="03/01/1992" >

<chapter Title="The Literature of Revolution" />

<chapter Title="Sources and Traditions" />

<chapter Title="Power and Liberty: A Theory of Politics" />

<chapter Title="The Logic of Rebellion" />

<chapter Title="Transformation" />

<chapter Title="The Contagions of Liberty" />

<chapter Title="Fulfillment: A Commentary on the Constitution" />

</book>

<book Title="Gödel, Escher, Bach: an Eternal Golden Braid" Author="Douglas R. Hofstadter" UnitPrice="20.00" Url="http://www.amazon.com/Godel-Escher-Bach-Douglas-Hofstadter/dp/B001IAM392" ReleaseDate="01/01/1999" >

<chapter Title="The MU-puzzle." />

<chapter Title="Meaning and Form in Mathematics." />

<chapter Title="Figure and Ground." />

<chapter Title="Consistency, Completeness, and Geometry." />

<chapter Title="Recursive Structures and Processes." />

<chapter Title="The Location of Meaning." />

<chapter Title="The Propositional Calculus." />

<chapter Title="Typographical Number Theory." />

<chapter Title="Mumon and Gödel." />

<chapter Title="Levels of Description, and Computer Systems." />

<chapter Title="Brains and Thoughts." />

<chapter Title="Minds and Thoughts." />

<chapter Title="BlooP and FlooP and GlooP." />

<chapter Title="On Formally Undecidable Propositions of TNT and Related Systems." />

<chapter Title="Jumping out of the System." />

<chapter Title="Self-Ref and Self-Rep." />

<chapter Title="Church, Turing, Tarski, and Others." />

<chapter Title="Artificial Intelligence: Retrospects." />

<chapter Title="Artificial Intelligence: Prospects." />

<chapter Title="Strange Loops, Or Tangled Hierarchies." />

</book>

</books> 

 

XAML Code :

 

<UserControl x:Class="Infragistics_SilverLight.TreeDemo"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:ig="http://schemas.infragistics.com/xaml"

mc:Ignorable="d"

d:DesignHeight="300" d:DesignWidth="400">

<Grid x:Name="LayoutRoot" Background="White">

<!--<ig:XamTree x:Name="MyTree" ItemsSource="{Binding Books}" BorderThickness="0,0,0,0" Background="#FFFFFFFF" HorizontalAlignment="Stretch">

<ig:XamTree.HierarchicalItemTemplate>

<ig:HierarchicalDataTemplate ItemsSource="{Binding Name}">

<ig:HierarchicalDataTemplate.ItemTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Name}" Foreground="Gray" />

</StackPanel>

</DataTemplate>

</ig:HierarchicalDataTemplate.ItemTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Name}" FontWeight="Bold"/>

</StackPanel>

</DataTemplate>

</ig:HierarchicalDataTemplate>

</ig:XamTree.HierarchicalItemTemplate>

</ig:XamTree>-->

<ig:XamTree x:Name="MyTree" ActiveItemChanged="MyTree_ActiveItemChanged_2" ItemsSource="{Binding Books}" BorderThickness="0,0,0,0" Background="#FFFFFFFF" HorizontalAlignment="Stretch">

<ig:XamTree.HierarchicalItemTemplate>

<ig:HierarchicalDataTemplate ItemsSource="{Binding Chapters}">

<ig:HierarchicalDataTemplate.ItemTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Title}" Foreground="Gray" />

</StackPanel>

</DataTemplate>

</ig:HierarchicalDataTemplate.ItemTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding Title}" FontWeight="Bold"/>

</StackPanel>

</DataTemplate>

</ig:HierarchicalDataTemplate>

</ig:XamTree.HierarchicalItemTemplate>

</ig:XamTree>

</Grid>

</UserControl>

Code-Behind File: 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.IO;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Resources;

using System.Windows.Shapes;

using System.Xml;

using System.Xml.Linq;

namespace Infragistics_SilverLight

{

public partial class TreeDemo : UserControl

{

public TreeDemo()

{

InitializeComponent();

Read();

}

public class Book

{

public string Author { get; set; }

public string Title { get; set; }

public string UnitPrice { get; set; }

public string Url { get; set; }

public decimal Price { get; set; }

public string ReleaseDate { get; set; }

public IEnumerable<Chapter> Chapters { get; set; }

public XNode node { get; set; }

}

public class Chapter

{

public string Title { get; set; }

public string Author { get; set; }

public string UnitPrice { get; set; }

public XNode node { get; set; }

}

private IEnumerable<Chapter> GetChapters(XElement parent)

{

return (from d in parent.Descendants("chapter")

select new Chapter

{

Title = d.Attribute("Title").Value,

node = d

}).ToList<Chapter>();

}

//private void MyTree_ActiveItemChanged_1(object sender, Infragistics.Controls.Menus.ActiveItemChangingEventArgs e)

//{

// //txtBox.Text += PrintLog(DataTreeStrings.XDT_ActiveNodeChanged);

//}

public void Read()

{

try

{

XDocument doc = XDocument.Load("Books.xml");

var dataSource = (from d in doc.Descendants("book")

where (d.Descendants("chapter") != null && d.Descendants("chapter").Count() > 0)

select new Book

{

Author = d.Attribute("Author").Value,

Title = d.Attribute("Title").Value,

UnitPrice = d.Attribute("UnitPrice").Value,

Url = d.Attribute("Url").Value,

ReleaseDate = d.Attribute("ReleaseDate").Value,

Chapters = this.GetChapters(d),

node = d

});

this.MyTree.ItemsSource = dataSource.ToList();

}

catch (Exception)

{

throw;

}

}

private void MyTree_ActiveItemChanged_2(object sender, EventArgs e)

{

}

}

}