How to merge two lists using LINQ’s Union in C#?

Published on August 13, 2013 by abundantcode

Filed under LINQ

Last modified August 13, 2013

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Below is a sample code snippet demonstrating in simple steps on how to merge two lists using LINQ’s Union extension method in C#?

How to merge two lists using LINQ’s Union in C#?

using System;

using System.Collections.Generic;

using System.Data;

using System.Linq;

namespace AbundantCode

{

internal class Program

{

//How to Merge two lists using LINQ's Union in C# ?

private static void Main(string[] args)

{

List<Employee> employees = new List<Employee>()

{

new Employee { EmpID = 1 , Name ="Martin"},

new Employee { EmpID = 2 , Name ="Peter"},

new Employee { EmpID = 3 , Name ="Michael"},

new Employee { EmpID = 3 , Name ="Michael"}

};

List<Employee> employees2 = new List<Employee>()

{

new Employee { EmpID = 1 , Name ="Abundantcode"},

new Employee { EmpID = 2 , Name ="Best Programmer"},

new Employee { EmpID = 3 , Name ="Mike"},

new Employee { EmpID = 3 , Name ="Michael"}

};

//Merge the employees and Employees2 list

var MergedEmployees = employees.Union(employees2).ToList();

foreach (var item in MergedEmployees)

Console.WriteLine(item.Name);

Console.ReadLine();

}

}

public class Employee

{

public string Name { get; set; }

public int EmpID { get; set; }

}

}

How to merge two lists using LINQ's Union in C#?

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