Why is use the LINQ SequenceEqual Method in LINQ?

Ravi Vishwakarma

The SequenceEqual method is used to compare two collections or lists of elements sequences that are equal or not. It compares two elements pair-wise and sees elements that are matched are not. It returns the Boolean value. 

Syntax

 collection1.SequenceEqual( collection2);

Example

using System;
using System.Collections.Generic;
using System.Linq;
public class Program
{
 public static void Main()
 {
  List<string> count1= new List<string>() { 'UK', 'Australia', 'India', 'USA' };
  List<string> count2 = new List<string>() { 'India', 'UAE', 'Canada', 'UK', 'China', 'Pok' };
  bool flag  = count1.SequenceEqual(count2);
  Console.WriteLine('List are {0} same ', !flag ? 'not' : '');
  List<string> count3= new List<string>() { 'UK', 'Australia', 'India', 'USA' };
  List<string> count4 = new List<string>() { 'UK', 'Australia', 'India', 'USA'};
  bool flag1  = count3.SequenceEqual(count4);
  Console.WriteLine('List are {0}same ', !flag1 ? 'not ' : '');
  Console.ReadLine();
 }
}

Output

List are not same 
List are same