When Linq and ref Parameters Meet

programmersheaven.com — In this post we look into a curious quirk of C#: you can't use parameters passed as "ref" inside a Linq query (or a lambda expression or anonymous method either). By analysing the intermediate code produced by the C# compiler, we learn how anonymous methods are compiled when they need lexical scoping semantics. Finally, an attempt to change the IL to get the desired semantics reveals why C# forbids this. read more...

add a comment | category: Linq | Views: 0

Very Quick Guide To DLinq: Part 1

programmersheaven.com — The first part of our series on DLinq, this post illustrates the steps involved in creating the LINQ to SQL classes using Visual Studio 2008. It then looks at how to use them to write a simple query on the database and iterate over the results. read more...

add a comment | category: Linq | Views: 1

Can a language make programming more fun?

programmersheaven.com — When it comes to choosing a programming language, there is plenty of personal preference involved. This post considers a few reasons that might make people prefer one language over another. It then asks how much personal preference matters, and how much weight should be put on it when deciding which language to use. read more...

add a comment | category: Other | Views: 0

Do try...catch blocks hurt runtime performance?

programmersheaven.com — This posts looks at the real runtime cost of writing a try...catch block in a .Net language. Drawing on his knowledge of .Net internals, the author looks at how such structures are represented in a compiled .Net assembly and what happens at runtime, so the performance characteristics can be understood. read more...

add a comment | category: CLR | Views: 5

What is REST, anyway?

programmersheaven.com — In this article, we explain REST (Representational State Transfer). It’s an approach to building distributed systems, though less commonly used than Remote Procedure Calls. We look at what it is, how it differs from RPC, when it might be suitable to use it and what lessons we can learn from it. read more...

add a comment | category: Web Services | Views: 1

Higher Order Programming Is Easy!

programmersheaven.com — Higher Order Programming is one of those things that to many people sounds weird, magical, mysterious or just too hard for them to be able to do. It's not, and you have likely done it without realizing it. This article takes a quick look at the paradigm, using a couple of short examples. read more...

add a comment | category: C# | Views: 0

What are the next generation of programmers learning?

programmersheaven.com — What does it take to be a good programmer, and are computer science courses providing that to today’s students? This post takes a quick look at the key things that really should be on a computer science course, and discusses what the overall aim of the course should be: not just turning out code monkeys in today’s hot languages, but scientists who can effectively use (or create) the tools and languages that are available in a couple of decades time. read more...

add a comment | category: Other | Views: 0

Introducing C# 3 – Part 3

programmersheaven.com — This is the third of a four part series on C# 3.0. It covers new features that will help you to build data structures more easily, including object and collection initializers. It then moves on to anonymous types, which are useful in Linq, and how type equivalence works with anonymous types. read more...

add a comment | category: C# | Views: 0