A concise guide to C# Language Features

07 Jun 2017

Code Sage

My first venture into blogging was a collection of articles on C# language features. The articles are organized progressively by version release i.e. chronologically and then alphabetically by language feature.

To ease navigation when visiting the guide links to C# articles can be found below each article and in the menu.

My motivation at the time for the C# guide was as follows to create a consistent and organized reference for C# language features not found elsewhere.

How the world has changed since then! The C# language has evolved and so has the internet. The internet has become a much richer resource for learning C# language features.

Regards,

Brandon Dsouza

PS Some notes about the code examples within the guide:

Using statements have been omitted for brevity.
Other than the missing using statements and namespace, all code compiles and executes.

C# articles

csharp v2 +

Anonymous methods * Co- and Contra-variance for delegates * Delegate inference * Generics * Getter and setter separate accessibility * Iterators * Method group conversions (delegates) * Nullable types * Partials * Static classes *

csharp v3 +

Anonymous types * Auto-Implemented properties * Expression trees * Extension methods * Implicitly typed local variables * Lambda expression * Object and collection initializers * Partial methods * Query expressions *

csharp v4 +

Generic co- and contravariance * Named and optional arguments *

csharp v5 +

Asynchronous methods * Caller info attributes *

csharp v6 +

A note for CSharp 6 and beyond * Allow await in catch and finally blocks * Auto property initializers * Default values for Read-only Auto-properties * Dictionary (index) initializers * Exception filters * Expression-bodied members * Import of static type members into namespace * Null propagator (null-conditional operator, succinct null checking) * String interpolation * nameof operator *

csharp v7 +

Binary literals * Deconstruction * Digit separators * Expression bodied constructors and finalizers * Expression bodied getters and setters * Generalized async return types * Local functions * Out variables * Pattern matching * Ref returns and locals * Tuples *

Skills Footprint:

Category	Technical Specifics
general	Console Application * Documentation
standards	CSharp
tools	Visual Studio * GIT
concepts	Language Features * Object Oriented Programming * Design Patterns
packages	.NET * CSharp