Merge lists into one

Question

I saw posts like below which are really hard for me to understand. So I am re-posting it. Sorry if someone feels it\'s duplicate. I have just simple requirements

C# Join

Answer 1

Perform join on those two methods returning values by Lambda style Linq syntax:

var query = GetNames().Join(GetMailingAddress(),
                                    n => n.Id,
                                    e => e.Id,
                                    (n, e) => new { n.Id,n.Name,e.Email});

        foreach (var item in query)
        {
            Console.WriteLine(item.Id + "-" + item.Name +"-"+ item.Email);
        }

Perform join on those two methods returning values by Sql-style Linq syntax:

var query = from n in GetNames()
            join e in GetMailingAddress()
            on n.Id equals e.Id
            select new {n.Id,n.Name,e.Email };
foreach (var item in query)
    {
        Console.WriteLine(item.Id + "-" + item.Name +"-"+ item.Email);
    }

Note:Where GetName() and GetMailingAddress() method returns list of result set.