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The fourteenth part of the C# Object-Oriented Programming tutorial explains how to add delegates to classes and programs. Delegates are used to provide references to methods that may be altered at run-time. They are also essential when creating events.

With the release of Visual Studio 2008, Microsoft has updated the C# language to its latest version, 3.0. C# 3.0, contains several key language enhancements that support the recently-announced Language Integrated Query (LINQ) feature. This article, the first of a two-part series, will walk you through each of these new, time-saving language enhancements and provide a couple of code examples illustrating how to use them.

The eleventh article in the C# Object-Oriented Programming tutorial furthers the investigation of operator overloading. This time the overloading of the relational operators is described, allowing custom classes to be included in comparison operations.

The thirteenth part of the C# Object-Oriented Programming tutorial describes the use of indexers. A class that has an indexer can be used in a similar manner to an array. Objects of the class can use array-style notation to present multiple values.

C# 3.0: how to pass an anonymous types, and how to cast them.

C# 3.0 includes a few syntactical additions to the language. For the most part, Microsoft added these language additions to support Language Integrated Query (LINQ). These features include (but are not limited to) lambda expressions, extensions methods, anonymous types, implicitly typed local variables, automatic properties, and object initializers.

Eric Lippert argues that Immutable Objects are the future of C#. Here he offers directions that C# could go to improve the developer experience when writing programs that use immutable objects.

The eighth article in the C# Object-Oriented Programming tutorial describes a third overloading technique. By overloading the functionality of operators, the operation of the standard operators including + and - can be defined for new classes.

The ninth article in the C# Object-Oriented Programming tutorial continues the discussion of operator overloading. In this article, the overloading of the true and false operators is described, allowing an object to be used in conditional processing.

Some programming tasks require dynamic nature of properties exposed by an object. E.g. it might be needed to access object property by a given key, it might be needed to get all object properties and iterate over them. Dynamic properties are useful when you need to manage them at runtime, when your object is already instantiated. In this article we are going to create simple implementation of dynamic properties using C# programming language. We'll use generics for our dynamic properties to make the implementation more flexible and to avoid boxing operations when value types are used for underlying property values.