Sunday, December 28, 2014

C# 6.0–Auto implemented property initializer

This blog post is part of C# 6.0 Features Series.
As we all know C# 6.0 is there in preview mode and Microsoft has added few small features to C# 6.0 which helps  lot while you develop application. In today’s blog post we are going to learn one more small feature called “Auto implemented property initializers”.

Developers working on C# used a automatic properties a lot and there has been lot of demands from developers that automatic properties should a have initializers and Microsoft has listened to that feedback and with C# 6.0 it has been introduced. So now we don’t have to use constructors to initialize automatic properties and there will be less and much cleaner code for Automatic property initializations.

Let’s take example of Student class.
public class Student
    public Guid StudentId { get; }=Guid.NewGuid();
    public string FirstName { get; set; } = "Jalpesh";
    public string LastName { get; set; } = "Vadgama";
Here you can see that I have created three automatic properties StudentId, FirstName and LastName. All three properties are initialized using automatic property initializers.   So here you can student is property with only get so every time you create an object of student it will create a new Guid for that.

Following is a code for main method for our console application.
static void Main(string[] args)
    Student student = new Student();

    Console.WriteLine("Id= {0}", student.StudentId);
    Console.WriteLine("FirstName= {0}", student.FirstName);
    Console.WriteLine("LastName= {0}", student.LastName);

    Student anotherStudent = new Student

    Console.WriteLine("Id= {0}", anotherStudent.StudentId);
    Console.WriteLine("FirstName= {0}", anotherStudent.FirstName);
    Console.WriteLine("LastName= {0}", anotherStudent.LastName);
Here you can see that I have created two object of student. First object I have created without any object initialization  and while in second object I have initialize two properties with object initializer.

Let’s run this application.


That’s it. Now it is much more nice and cleaner code. Stay tuned for more! I am going to post lots of new features of C# 6.0.

You can find complete source code of this application at following location on github-


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