/*Anonymous type, as the name suggests, is a type that doesn't have any name. 

C# allows you to create an object with the new keyword without defining its class. 

The implicitly typed variable- var is used to hold the reference of anonymous types.*/

​

/*Linq Select clause creates an anonymous type as a result of a query to include various properties which is not defined in any class.

Consider the following example.*/

​

using System.Linq;

using System.Collections.Generic;

​

public class Student

{

    public int StudentID { get; set; }

    public string StudentName { get; set; }

    public int age { get; set; }

}

public class Program

{

​

    public static void Main(string[] args)

    {

         IList<Student> studentList = new List<Student>() { 

                        new Student() { StudentID = 1, StudentName = "John", age = 18 } ,

                        new Student() { StudentID = 2, StudentName = "Steve",  age = 21 } ,

                        new Student() { StudentID = 3, StudentName = "Bill",  age = 18 } ,

                        new Student() { StudentID = 4, StudentName = "Ram" , age = 20  } ,

                        new Student() { StudentID = 5, StudentName = "Ron" , age = 21 } 

                    };

​

        //LINQ query

        var studentNames = from s in studentList

                           select new { StudentID = s.StudentID, 

                                        StudentName = s.StudentName 

                                      };

        //LINQ query execution

        foreach(var stu in studentNames)

        {

            System.Console.WriteLine(stu.StudentID + " : " + stu.StudentName );

        }

    }

​

}