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How to compare two ValueTuple in C#

The efficient and flexible C# data structures called ValueTuples allow developers to form groups of many values by two or more. In other cases, using ValueTuples may need you to compare two instances, both ensuring that these instances are equal.

This blog post will demonstrate various methods of comparing ValueTuples in C# with the represented syntax, code, and examples for your better understanding while also being able to quickly accomplish this task.

What is ValueTuple?

A ValueTuple has been introduced in C# 7.0, and this is a lightweight data structure that enables us to create tuples without having to define a named type. It is highly useful when you want to cluster together related data points. A ValueTuple is demarcated by commas between its elements that are equated using parentheses.


The named elements in the ValueTuple we created in the sample are Name, Age, and City. Let us discuss now how the number of ways to compare two ValueTuples.

Structural Equality

The simplest way to compare the two ValueTuples is by employing structural equality. This consists of verification of the equality of each tuple's elements.

As all elements obtained from tuple 1 are equal to their corresponding elements from tuple 2, areEqual will have a true value in this case.

Equals Method:

The Equals method can also be applied for comparing two pairs of ValueTuple. Since this method compares members, it appears to be structural equality.

Similarly, as Equals uses a structural comparison, the isEqual method will be true.

Comparing Individual Components:

If that is all you'd like to do, you can compare each item within the ValueTuples directly.

As the second items (strings) are not the same in this case, areEqual will give false.

Implementing IComparable Interface:

For more complex cases, you may be interested in having the IComparable interface implemented in your ValueTuple. As a result, you can now describe a specific comparison logic.

The custom comparison logic is true in the above case since areEqual will be true.


To illustrate a practical instance as well as you have a student's list who are ValueTuples that signify as such, and you're interested to find out whether the record list has a student with a discrepant set of details?


Does the student exist? True


To conclude, the chosen approach for comparing ValueTuples in C# should be based on your code's specific requirements. The whole comparison of tuples can be done easily by using Equals or structural equality, and this can be used in situations where each of their elements should be considered. There is an element of flexibility in direct comparison if selected comparisons are required. However, developers can formulate proper rules through using the IComparable interface in advanced scenarios that require customized comparison rules.

Understanding the nuances involved in every type of comparison technique allows C# programmers to develop reliable and efficient codes that can be tailored to fit the somewhat different needs of every project. These examples illustrate the application of these strategies in actual life and show their practical benefits. All types of data structures involve the use of these comparison methods, from simpleValueTuples to complex ones. Knowing them is an essential part of improving the readability and functionality of C# code. Therefore, ValueTuples' flexible nature and a wide choice of comparisons make the language flexible and allow the developer to develop valid, easy-to-maintain solutions.

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