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LINQ to Tree - A Generic Technique for Querying Tree-like Structures

, 4 Mar 2010 CPOL
This article presents a generic approach to applying LINQ queries to tree like structures. Using T4 templates for code generation, LINQ to VisualTree (WPF), LINQ to WinForms, and LINQ to FileSystem APIs are constructed.

<#@ template language="C#v3.5" hostSpecific="true" debug="true" #>

<#@ include file="..\" #>

<#@ import namespace="System.IO" #>

using System.IO;


string typeName = "DirectoryInfo";
string adapterType = "FileSystemTreeAdapter";
string targetNamespace = "LinqToFileSystem";

// note, because DirectoryInfo.Equals does not evaluate true for two instances of the 
// same directory, we have to specify an equality comparison that uses the FullName property
GenerateLinqMethods(typeName, adapterType, targetNamespace,
	false, "child.FullName == item.FullName");


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About the Author

Colin Eberhardt
Architect Scott Logic
United Kingdom United Kingdom
I am CTO at ShinobiControls, a team of iOS developers who are carefully crafting iOS charts, grids and controls for making your applications awesome.

I am a Technical Architect for Visiblox which have developed the world's fastest WPF / Silverlight and WP7 charts.

I am also a Technical Evangelist at Scott Logic, a provider of bespoke financial software and consultancy for the retail and investment banking, stockbroking, asset management and hedge fund communities.

Visit my blog - Colin Eberhardt's Adventures in .NET.

Follow me on Twitter - @ColinEberhardt


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