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CSharp · Console

/Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
					
public class Program
{
	public class A
	{
		public string Id { get; set; }
		public string Name { get; set; }
	}

	public class B
	{
		public string Id { get; set; }
		public string Location { get; set; }
	}

	public class AB
	{
		public string Id { get; set; }
		public string Name { get; set; }
		public string Location { get; set; }
	}
	public static void Main()
	{
		var a1 = new A
		{
			Name = "XYZ",
			Id = "123"
		};
		var a2 = new A
		{
			Name = "UVW",
			Id = "567"
		};
		var aList = new List<A>()
		{
			a1,
			a2
		};

		var b1 = new B
		{
			Location = "US",
			Id = "123"
		};
		var b2 = new B
		{
			Location = "IN",
			Id = "567"
		};
		var bList = new List<B>()
		{
			b1,
			b2
		};

		var output = aList.Join(bList,
								a => a.Id,
								b => b.Id,
								(a, b) => new AB
								{
									Id = a.Id,
									Location = b.Location,
									Name = a.Name
								}).ToList();

		foreach(var item in output)
		{
			Console.WriteLine(string.Format("Id : {0}, Name : {1}, Location:{1}", item.Id, item.Name, item.Location));
		}
	}
}