Dirkster.TreeLib 1.0.1

There is a newer version of this package available.
See the version list below for details.
dotnet add package Dirkster.TreeLib --version 1.0.1
NuGet\Install-Package Dirkster.TreeLib -Version 1.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Dirkster.TreeLib" Version="1.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Dirkster.TreeLib --version 1.0.1
#r "nuget: Dirkster.TreeLib, 1.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Dirkster.TreeLib as a Cake Addin
#addin nuget:?package=Dirkster.TreeLib&version=1.0.1

// Install Dirkster.TreeLib as a Cake Tool
#tool nuget:?package=Dirkster.TreeLib&version=1.0.1

Build status Release NuGet


This project produces a <a href="https://docs.microsoft.com/en-us/dotnet/standard/net-standard">.Net Standard</a> Library with Generic methods to traverse k-nary trees in different orders of traversal.

Implementing something as complicated as a Post-Order traversal algorithm requires just:

  • a project reference,
  • a <a href="https://msdn.microsoft.com/en-us/library/bb308959.aspx">LINQ</a> statement to find each set of children in the tree,
  • and a simple for each loop to implement the operation on each tree node:
Console.WriteLine("(Depth First) PostOrder Tree Traversal V3");
items = TreeLib.Depthfirst.Traverse.PostOrder(root, i => i.Children);

foreach (var item in items)

This pattern leads to a clear-cut separation of:

  • the traversal algorithm and
  • the operations performed on each tree node (e.g.: Console.WriteLine(item.GetPath());).

The project in this repository contains a demo console project to demo its usage in more detail.

Supported Generic Traversal Methods

Breadth First

Level Order

See TreeLib.BreadthFirst.Traverse.LevelOrder implementation for:

  • trees with 1 root (expects <T> root as parameter)
  • trees with multiple root node (expects IEnumerable<T> root as parameter)

Depth First


See TreeLib.BreadthFirst.Traverse.PreOrder implementation for:

  • trees with 1 root (expects <T> root as parameter)
  • trees with multiple root node (expects IEnumerable<T> root as parameter)


See TreeLib.BreadthFirst.Traverse.Postorder implementation for:

  • trees with 1 root (expects <T> root as parameter)
  • trees with multiple root node (expects IEnumerable<T> root as parameter)


  • Read about <a href="http://www.codeducky.org/easy-tree-and-linked-list-traversal-in-c/">Generic Tree and Linked List Traversal in C#</a> to understand the usefulness of Generic traversal methods.

  • Watch the <a href="https://www.youtube.com/watch?v=gm8DUJJhmY4">Binary tree traversal: Preorder, Inorder, Postorder</a> video to better understand what is what (and why these Traversal Order Names make some sense):

  • Look into data structure books online Introduction to Trees, Binary Search Trees or offline Algorithms by Robert Sedgewick and Kevin Wayne, if you still need more background on tree structures

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.0 is compatible.  netstandard1.1 was computed.  netstandard1.2 was computed.  netstandard1.3 was computed.  netstandard1.4 was computed.  netstandard1.5 was computed.  netstandard1.6 was computed.  netstandard2.0 was computed.  netstandard2.1 was computed. 
.NET Framework net40 is compatible.  net403 was computed.  net45 was computed.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Universal Windows Platform uap was computed.  uap10.0 was computed. 
Windows Phone wp8 was computed.  wp81 was computed.  wpa81 was computed. 
Windows Store netcore was computed.  netcore45 was computed.  netcore451 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
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This package has no dependencies.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Dirkster.TreeLib:

Package Downloads

The Aml.Engine.Services.TreeTraversal is a service extension for the Aml.Engine which provides different algorithms to traverse an InternalElement tree. The implementation is based on Dirk Bahles TreeLib.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
1.2.0 8,847 7/5/2019
1.1.0 3,195 11/9/2017
1.0.3 1,257 11/7/2017
1.0.2 979 11/7/2017
1.0.1 980 11/7/2017
1.0.0 1,279 10/8/2017

Releasing version 1.0.1 with additional support for .Net 4.0