Category Archives: LINQ

Simplifying LazyLinq

Posted on September 13, 2009 by Keith Dahlby

This is the fourth in a series of posts on LazyLinq, a wrapper to support lazy initialization and deferred disposal of a LINQ query context: Introducing LazyLinq: Overview Introducing LazyLinq: Internals Introducing LazyLinq: Queryability Simplifying LazyLinq Introducing LazyLinq: Lazy DataContext … Continue reading →

Also posted in Programming | 4 Comments

Introducing LazyLinq: Queryability

Posted on August 21, 2009 by Keith Dahlby

This is the third in a series of posts on LazyLinq, a wrapper to support lazy initialization and deferred disposal of a LINQ query context: Introducing LazyLinq: Overview Introducing LazyLinq: Internals Introducing LazyLinq: Queryability Simplifying LazyLinq Introducing LazyLinq: Lazy DataContext … Continue reading →

Also posted in Uncategorized | 18 Comments

Introducing LazyLinq: Overview

Posted on August 6, 2009 by Keith Dahlby

This is the first in a series of posts on LazyLinq, a wrapper to support lazy initialization and deferred disposal of a LINQ query context, including LINQ to SQL’s DataContext: Introducing LazyLinq: Overview Introducing LazyLinq: Internals Introducing LazyLinq: Queryability Simplifying … Continue reading →

Also posted in .NET, TDD | 2 Comments

Using IDisposables with LINQ

Posted on July 23, 2009 by Keith Dahlby

Objects that implement IDisposable are everywhere. The interface even gets its own language features (C#, VB, F#). However, LINQ throws a few wrenches into things: LINQ’s query syntax depends on expressions; using blocks are statements. When querying a sequence of … Continue reading →

Also posted in .NET | 12 Comments

Improve Your Code Golf Game with LINQ

Posted on July 23, 2009 by Keith Dahlby

I always enjoy a good coding challenge, and variations of code golf are most common. For the uninitiated, code golf provides a problem with the objective of providing a solution that requires the fewest keystrokes or lines. While production code … Continue reading →

Also posted in Rails, Ruby | 4 Comments

Project-wide controller survey through reflection

Posted on May 15, 2009 by Jimmy Bogard

I often lose track of all of the different controllers in our system, especially if I’m trying to see what existing conventions we have in place for the design of actions.  To get around this, I use a simple LINQ … Continue reading →

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Visualizing LINQ expressions in the debugger

Posted on November 27, 2008 by Jimmy Bogard

In Ben’s recent post on Fluent Route Testing in ASP.NET MVC, he recalled a problem we had when trying to figure out how to deal with an Expression<> once we have one.  Typically, I like to parse the Expression to … Continue reading →

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Deferred execution gotchas

Posted on August 13, 2008 by Jimmy Bogard

I was trying to be clever the other day and try to chain assertions on an array: [Test] public void This_does_not_work() { var items = new[] {1, 2, 3, 4, 5}; items .Each(x => x.ShouldBeLessThan(0)) .Each(x => x.ShouldBeGreaterThan(10)); } I … Continue reading →

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Query Objects with Repository Pattern Part 2

Posted on August 2, 2008 by Chad Myers

As promised in my previous post, I’m going to make our query object a little more flexible and dynamic. First, this is what I really want to be able to do something like this: var customers = repo.FindBy( new TopCustomersWithLowDiscountQuery() … Continue reading →

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Query Objects with the Repository Pattern

Posted on August 2, 2008 by Chad Myers

Nate Kohari (whose primate brain is far too small to comprehend this post [inside joke, he’s actually really sharp]) was asking on Twitter today about how to structure his repositories: Per aggregate root, Per entity, or just one repository for … Continue reading →

Also posted in Repositories | 4 Comments