File list (Check if you may need any files):
TreeView
........\Changelog.txt
........\license.html
........\Sample Application
........\..................\AboutDialog.xaml
........\..................\AboutDialog.xaml.cs
........\..................\App.xaml
........\..................\App.xaml.cs
........\..................\CategoryTree.cs
........\..................\ClassDiagram1.cd
........\..................\Images
........\..................\......\Add.png
........\..................\......\Book.png
........\..................\......\FolderClosed.png
........\..................\......\FolderLogo.png
........\..................\......\FolderOpen.png
........\..................\......\FolderSelected.png
........\..................\......\Home.png
........\..................\......\Info.png
........\..................\......\Logo.png
........\..................\......\Movie.png
........\..................\......\Music.png
........\..................\......\Remove.png
........\..................\......\Star.png
........\..................\......\WinFolder.gif
........\..................\InputDialog.xaml
........\..................\InputDialog.xaml.cs
........\..................\Introduction.xaml
........\..................\Introduction.xaml.cs
........\..................\MainWindow.xaml
........\..................\MainWindow.xaml.cs
........\..................\Properties
........\..................\..........\AssemblyInfo.cs
........\..................\..........\Resources.Designer.cs
........\..................\..........\Resources.resx
........\..................\..........\Settings.Designer.cs
........\..................\..........\Settings.settings
........\..................\Sample Application.csproj
........\..................\TreeResources.xaml
........\..................\ViewModel
........\..................\.........\ShopCategory.cs
........\..................\.........\ShopModel.cs
........\..................\.........\ShopUtil.cs
........\WPF TreeView
........\............\Classes.cd
........\............\ItemMonitor.cs
........\............\Properties
........\............\..........\AssemblyInfo.cs
........\............\..........\Resources.Designer.cs
........\............\..........\Resources.resx
........\............\..........\Settings.Designer.cs
........\............\..........\Settings.settings
........\............\RoutedTreeItemEventArgs.cs
........\............\Themes
........\............\......\Generic.xaml
........\............\TreeLayout.cs
........\............\TreeUtil.cs
........\............\TreeViewBase.cs
........\............\TreeViewBase.Declarations.cs
........\............\WPF TreeView.csproj
........\WPF TreeView.sln