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C# 6.0 Features Part I : Property Initializers

Monday, August 4, 2014

With a new release of the C# language approaching, it’s also time to look at new features for C#.

First up is the ability to use an initialization expression with an automatically implemented property.

Currently, a constructor is required if you want to create objects using an auto-property and initialize an auto-property to a non-default value.

In C# 6.0, the ability to use an initializer with the auto-property means no explicit constructor code is required.

public class User
    public Guid Id { get; } = Guid.NewGuid();
    // ...

Another benefit of the syntax is how an initialized auto-property only requires a getter, the set method is optional. With no setter, immutability is easier to achieve.  

The property initialization syntax also plays well with another new feature for C# 6, the primary constructor syntax. We’ll look at primary constructors in the next post for this series.