See the below C# code for select and Order by lambda expression operators.
Must import System.Linq Namespace.using IEnumerable class,we can do using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
protected void Page_Load(object sender, EventArgs e)
{
string[] country = { "india", "Morocco", "Canada",
"Switzerland", "Kenya", "Brazil",
"Cyprus", "Senegal","Finland","Algeria","Maldives" };
IEnumerable<string> GetCountry = from listOfcountries in country
orderby listOfcountries
select listOfcountries;
foreach (string strCountry in GetCountry)
{
Response.Write(strCountry + "<br/>");
}
}