Usage with non-default constructors C# with Example

You can combine object initializers with constructors to initialize types if necessary. Take for example a class 
defined as such: 
public class Book { 
public string Title { get; set; } 
public string Author { get; set; } 
public Book(int id) { 
//do things 
} 
// the rest of class definition 
} 
var someBook = new Book(16) { Title = "Don Quixote", Author = "Miguel de Cervantes" } 
This will first instantiate a Book with the Book(int) constructor, then set each property in the initializer. It is 
equivalent to: 
var someBook = new Book(16); 
someBook.Title = "Don Quixote"; 
someBook.Author = "Miguel de Cervantes";