Event Initializer in C# 6.0

 

Take the following sample class which has a property and an event listener

1. public class Lecturer
2.     {
3.         public string Name { get; set; }
4.         public EventHandler<EventArgs> Speaking;
5.  
6.     }

.

In C# 6.0 when you initialize a new object wire up delegate to the event inside the object initialization syntax. Before C# 6.0 it was illegal.

1. static void Main(string[] args)
2.       {
3.           EventHandler<EventArgs> log = (e, o) => Console.WriteLine("Speaking");
4.  
5.           Lecturer mathsLecturer = new Lecturer
6.           {
7.               Name = "Perera",
8.               Speaking += log
9.           };
10.       }

Also you can directly assign the lambda to the event as follows.

1. static void Main(string[] args)
2.         {
3.             EventHandler<EventArgs> log = (e, o) => Console.WriteLine("Speaking");
4.  
5.             Lecturer mathsLecturer = new Lecturer
6.             {
7.                 Name = "Perera",
8.                 Speaking += (e, o) => Console.WriteLine("Speaking")
9.             };
10.         }

 

Happy Coding !!!