My previous article explored lazy evaluation and looked at how it can be simulated in C#. We implemented a class Lazy<T>, which represents a value that can be evaluated on demand—this means that the class "knows" how to calculate the result, but doesn't actually calculate it until it is really needed in the program.

Given the enormous expressive power that the LINQ technology puts in the hands of developers, it is not surprising that we have started to search for ways to “LINQ-activate” more and more data types and technologies...

When working with instance variables and most factory and conversion methods you need to repeat the type name for both the declaration and the call to the static methods...

This article provides information about a new feature of C# 3.0 called Extension Methods. Extension Methods allow developers to add new methods to an existing type without having to create an inherited class or to recompile the original. This concept allows you to add methods to classes for which you might not even have the sources; e.g., System.String.

In this article we will look how lazy computations can be written in C# (using some of the new language features from version 3.0). We will first implement a Lazy class to represent this kind of computation, then look at a few simple examples to demonstrate how the class can be used, and finally we will examine one slightly more complicated, but practically useful application.

Learn about mixins, small utility classes that define some useful functionality which will usually become part of something larger.

Learn the true story behind delegates. Explore the class structure of delegates, and how to handle sequential notifications for multicast delegates.

Learn how to use anonymous methods to write shorter, easier to use read code, especially when handling events.

Learn from top selling author Bill Wagner how to create building blocks for your program using custom iterators and the yield statement.

Of all the features in C# 3.0, local type inference is generating the most questions and misunderstanding.  Read this article to quickly come up to speed on this important subject.