C# | Check if two SortedList objects are equal

Last Updated : 17 Dec, 2018

Equals(Object) Method which is inherited from the Object class is used to check whether the specified SortedList object is equal to another SortedList object or not.

Syntax:

public virtual bool Equals (object obj);

Here, obj is the object which is to be compared with the current object.

Return Value: This method return true if the specified object is equal to the current object otherwise, false.

Below programs illustrate the use of above-discussed method:

Example 1:

// C# program to if a SortedList
// is equal to another SortedList
using System;
using System.Collections;
  
class Geeks {
  
    // Main Method
    public static void Main(String[] args)
    {
  
        // Creating a sorted list of key/value pairs
        SortedList fslist = new SortedList();
  
        // Adding pairs to fslist
        fslist.Add("Maths ", 98);
        fslist.Add("English ", 99);
        fslist.Add("Physics ", 97);
        fslist.Add("Chemistry", 96);
        fslist.Add("CSE     ", 100);
  
        // Checking whether fslist is
        // equal to itself or not
        Console.WriteLine(fslist.Equals(fslist));
    }
}

Output:

True

Example 2:

// C# program to if a SortedList
// is equal to another SortedList
using System;
using System.Collections;
  
class Geeks {
  
    // Main Method
    public static void Main(String[] args)
    {
  
        // Creating a sorted list of key/value pairs
        SortedList fslist = new SortedList();
  
        // Adding pairs to fslist
        fslist.Add("Maths ", 98);
        fslist.Add("English ", 99);
        fslist.Add("Physics ", 97);
        fslist.Add("Chemistry", 96);
        fslist.Add("CSE     ", 100);
  
        // Creating an SortedList
        SortedList fslist2 = new SortedList();
  
        // Adding elements to SortedList
        fslist2.Add("1", "one");
        fslist2.Add("2", "two");
        fslist2.Add("3", "three");
        fslist2.Add("4", "four");
        fslist2.Add("5", "five");
  
        // Checking whether fslist is
        // equal to fslist2 or not
        Console.WriteLine(fslist.Equals(fslist2));
          
        // Creating a sorted list of key/value pairs
        SortedList fslist3 = new SortedList();
          
        // Assigning fslist2 to fslist3
        fslist3 = fslist2;
          
        // Checking whether fslist3 is
        // equal to fslist2 or not
        Console.WriteLine(fslist3.Equals(fslist2));    
    }
}

Output:

False
True

Note: If the current instance is a reference type, the Equals(Object) method checks for reference equality.

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C# | Check if two SortedList objects are equal