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

By , 4 Mar 2010
 
LinqToTree.zip
CodeGen
CodeGen.cs
LinqToFileSystem
FileSystemTreeAdapter.cs
Form1.cs
Form1.Designer.cs
LinqToFileSystem.cs
LinqToFileSystem.csproj
LinqToFileSystem.tt
Program.cs
Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings
LinqToTreeCodeGen.tt
LinqToTreeWPF
app.config
App.xaml
App.xaml.cs
LinqToVisualTree.cs
LinqToVisualTree.tt
LinqToVisualTreeWPF.csproj
Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings
VisualTreeAdapter.cs
Window1.xaml
Window1.xaml.cs
LinqToVisualTree
App.xaml
App.xaml.cs
CodeGen.cs
CodeGen.tt
LinqToVisualTree.csproj
Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings
VisualTreeAdapter.cs
Window1.xaml
Window1.xaml.cs
LinqToWindowsForms
Form1.cs
Form1.Designer.cs
Form1.resx
LinqToWindowsForms.csproj
LinqToWinForms.cs
LinqToWinForms.tt
Program.cs
Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings
WindowsFormsTreeAdapter.cs
LinqToTree.sln
LinqToTree
ILinqToTree.cs
LinqToTree.csproj
LinqToTreeEnumerableExtensions.cs
LinqToTreeExtensions.cs
Properties
AssemblyInfo.cs
LinqToTreeWPF
App.xaml
App.xaml.cs
LinqToTreeWPF.csproj
obj
Debug
Properties
AssemblyInfo.cs
Resources.Designer.cs
Resources.resx
Settings.Designer.cs
Settings.settings
VisualTreeAdapter.cs
Window1.xaml
Window1.xaml.cs
README.txt
 

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

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

<#@ 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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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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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About Article
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.
Type Article
Licence CPOL
First Posted 1 Mar 2010
Views 80,691
Downloads 1,681
Bookmarked 202 times
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