using System;
using System.Linq;
using System.Collections.Generic;
public class Example {
public static void Main() {
string[] str1 = { "Rajive" };
string[] str2 = { };
string res = str1.AsQueryable().Single();
Console.WriteLine("String found: "+res);
string res1 = str2.AsQueryable().SingleOrDefault();
Console.WriteLine(String.IsNullOrEmpty(res1) ? "String not found" : res1);
}
}
Output
String found: one
String not found
2020-03-01