Loading and storing the whole items or only its settings, from registry, INI-file etc. is only a simple call to a method. Everything else is done inside.

Free for non-commercial use.
 
Trial (work while IDE is running)
Source: On purchase/registration
Price: $30

Free for students and individuals.
 
Fully functional
Source: On purchase/registration
Price: $10
Source Price: $20
Exe-Demo Included

• To improve standard TreeView with such sweet features as multiselect and custom draw (new properties in each node FontColor, FontStyle; OnCustomDraw, OnCustomDrawItem events in tree).
• To browse and edit datasets containingxff hierarchically organized data with TDCDBTreeView and TDCDBListView. More than one dataset can be shown in the same tree.
• To get TDCTreeView and TDCListView. These components work with TreeSource - object which provides the interface between treeview/listview and displayed data.
• Many more...

Since the QuantumTreeList was written from scratch, you will no longer be at the mercy of Microsoft's commctrl and the inherent performance and usability restrictions contained therein. In fact, the ExpressQuantumTreeList completely redefines use of tree structures within an application. The QuantumTreeList is a multi-purpose data visualization system that can operate as a Tree or a Grid in both data aware and non-data aware modes. The unique synergy between a traditional grid and traditional tree-views allows you to create cutting-edge and visually appealing application interfaces for your users.

Not Just a TreeList Control, the QuantumTreeList Suite includes a robust TreeList control, in both data aware and non-data aware editions.

But: The Suite is far more than a powerful TreeList:the suite is also comprised of a collection of over 34 standalone field editors - all of which are available in data aware and non-data aware editions.
 
Demo only
Source: On purchase/registration
Price: $209.99
Source Price: $259.99
Exe-Demo Included

By Selecting a node on the tree it's path is the calculated.
 
Fully functional
Source: Included
Exe-Demo Included

Some features:

• Native VCL component (not inherited from TCustomTreeView and does not require the use of the Common Controls DLL).
• Fully compatible with the properties, events and methods of the TTreeView component - it can be a direct replacement for the TTreeView on pre-designed forms.
• Full standard windows help file describing all properties, events and methods of the component and related objects.
• Provides a base component (TCustomRBTreeView) for programmers who need to develop custom TRBTreeView components of their own.
• Supports right to left reading order for languages that requires it (like Hebrew, Arabic etc) - this support put the vertical scroll bar to the left, and changes the reading order of the text in each node.
• Save and load the tree to and from a text file.
• Save and load the tree to and from a memory stream.
• Print the tree to any canvas, particularly a printer one (with control over nodes size, tree position and lots more).
• Manage the tree nodes in design time with the TRBTreeNodes design-time editor: insert node, sub nodes, delete nodes, change the text etc.
• Smooth scrolling by two proportional scrollbars when tree is bigger than the client area.
• If the built-in drawing is not enough, provide your own drawing routines by writing a simple event handler.
• Allows for the user to edit each node text in run-time using a popup text edit box (in-place editing).
• And more...

A real WYSWYG powerful rcTreeView editor. Never check your imagelist's index time and time again, just pick it up from a graphic list.

Multiple Check type support. Check Box, Grayed Check Box, Radio Button, Text Button, Number Button, Date Button and Time Button are all support now.

Inside data input support. rcTreeView can be a wonderful data input control. if you were boring by a packed data interface, it would be you ideal choice. Each rcTreeNode is provided with three data properties, one integer and two strings, you can easily use them store your own data.

New indexing technology. rcTreeView is more faster than a standard one, it'll make your applications a huge speed improvements, it's able to create thousands nodes dynamically.

Multiple file format support. You can save it to a txt file for other compatible treeview, or load it from a txt file created by others.
 
Fully functional
Source: On request
Price: $49.95

New version fixes bug in resizing header sections.

• Event OnCheckNode added
• Customizable columns (Font, Color, Alignment, Width)
• Default button images
• New class represented Nodes (again descendant - of TTreeNode)
• Multi Columns (defined by standard Header component)
• Check boxes and Radio buttons
• SubItems property for each Node (like TListView)
• Default or Custom draw of columns
• Fully customizable at Design-Time (including Check, Radio and SubItems)
• User defined Check & Radio butons images.

• Direct Windows Vista folder selection replacement
• Supports restricted folder selection (folders hierarchically under selected folder only)
• Default Windows Vista as well as Office 2003 / 2007 style support
• Supports use of fully custom tree data
• Supports use of custom images
• Customizable lookup support
• Editable or readonly support.

• Treeview organized in columns
• Each node can have HTML formatted text, including hyperlinks and images in each column
• Columns can be resized at run-time
• Column headers with HTML formatted information.

Registered version supports VCL & VCL.NET.
 
Fully functional
Source: On purchase/registration
Source Price: $30
Exe-Demo Included

TTreeViewEx will save both caption, image indexes and data - the data part relies on an event so u can supply the size of the data.

Another event added is the OnNodeLoaded, this is so when a node is loaded from a data source you can modify it as you wish.
 
Fully functional
Source: Included

Features: persistence, design time support, works via stateindex property of nodes, can ignore branches.
 
Fully functional
Source: Included