What new in AJAX Exception

Get only a single element of a sequence using the Single() method.

Let’s say we have a string array with only one element.

 

using System;
using System.Linq;
using System.Collections.Generic;
public class Demo {
   public static void Main() {
      string[] str = { "one" };
      string res = str.AsQueryable().Single();
      Console.WriteLine(res);
   }
}