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VB.Net program to demonstrate the ThenBy() LINQ extension method

Here, we are going to demonstrate the ThenBy() LINQ extension method in VB.Net.
Submitted by Nidhi, on January 25, 2021

In this program, we will use OrderBy() and ThenBy() extension methods to sort the employee list in ascending order, here ThenBy() method is used to sort the list on another field after OrderBy() and print them on the console screen.

Program/Source Code:

The source code to demonstrate the ThenBy() LINQ extension method is given below. The given program is compiled and executed successfully.

'VB.NET program to demonstrate the 
'ThenBy() LINQ extension method.

Imports System
Imports System.IO
Imports System.Linq

Module Module1
    Public Class Employee
        Public id As Integer
        Public name As String
        Public age As Integer
    End Class

    Sub Main()
        Dim empList = New List(Of Employee) From
        {
            New Employee() With {.id = 101, .name = "Amit", .age = 21},
            New Employee() With {.id = 102, .name = "Arun", .age = 22},
            New Employee() With {.id = 103, .name = "Aman", .age = 23},
            New Employee() With {.id = 104, .name = "Amar", .age = 24},
            New Employee() With {.id = 105, .name = "Akki", .age = 25}
        }

        Dim Emps = empList.OrderBy(Function(e) e.name).ThenBy(Function(e) e.id)

        Console.WriteLine("Employees detail: ")
        For Each emp As Employee In Emps
            Console.WriteLine(emp.id & " " & emp.name & " " & emp.age)
        Next
    End Sub
End Module

Output:

Employees detail:
105 Akki 25
103 Aman 23
104 Amar 24
101 Amit 21
102 Arun 22
Press any key to continue . . .

Explanation:

In the above program, we created a module Module1 that contains a class Employee and the Main() function. The Main() function is the entry point for the program.

The Employee class contains data member "id", "name" and "age". In the Main() function, We created the list of employees. Here, we used OrderBy() and ThenBy() LINQ method to sort the employee's list in the ascending order based on their names and ids and print the employee's detail on the console screen.

VB.Net LINQ Query Programs »



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