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C# Tuple<T1,T2,T3> Class - GeeksforGeeks

Last Updated : 11 Jul, 2025

Tuple<T1, T2, T3> class creates a 3-tuple or triple. It represents a tuple that contains three elements. we can instantiate a Tuple<T1, T2, T3> object by calling either the Tuple<T1, T2, T3>(T1, T2, T3) constructor or by the static Tuple.Create method. We can retrieve the value of the tuple’s elements using the read-only Item1, Item2, and Item3 instance properties. There are some important points mentioned below:

• It implements the IStructuralEquatable and IComparable interfaces.
• It is defined under the System namespace.
• It represents multiple data into a single data set.
• It allows us to create, manipulate, and access data sets.
• It returns multiple values from a method without using out parameter.
• It allows passing multiple values to a method with the help of single parameters.
• It can also store duplicate elements.

Tuple<T1, T2, T3>(T1, T2, T3)	

• Item1: Gets the value of the Tuple<T1, T2, T3> object’s first component.
• Item2: Gets the value of the current Tuple<T1, T2, T3> object’s second component.
• Item3: Gets the value of the current Tuple<T1, T2, T3> object’s third component.

Example:

using System;

class Geeks
{
	static public void Main()
	{
		// Creating 3-Tuple using constructor
		Tuple<int, int, int> t = new Tuple<int, int, int>(79, 34, 67);

		// Accessing the values
		Console.WriteLine("Value of the 1st Component: " + t.Item1);
		Console.WriteLine("Value of the 2nd Component: " + t.Item2);
		Console.WriteLine("Value of the 3rd Component: " + t.Item3);

	}
}

Value of the 1st Component: 79
Value of the 2nd Component: 34
Value of the 3rd Component: 67

There are some important methods which are used in tuples are given below:

Method

Description

Equals(Object)

Returns a value that indicates whether the current Tuple object is equal to a specified object.

GetHashCode()

Returns the hash code for the current Tuple<T1, T2, T3> object.

GetType()

Gets the Type of the current instance.

MemberwiseClone()

Creates a shallow copy of the current Object.

ToString()

Returns a string that represents the value of this Tuple<T1, T2, T3> instance.

Example:

using System;

class Geeks
{
	static public void Main()
	{
		// Creating 3-Tuple using constructor
		Tuple<int, int, int> mytuple1 = new Tuple<int, int, int>(20, 40, 90);
		Tuple<int, int, int> mytuple2 = new Tuple<int, int, int>(20, 49, 87);

		// Using Equals method
		if (mytuple1.Equals(mytuple2))
			Console.WriteLine("Tuple Matched..");
		else
			Console.WriteLine("Tuple not matched..");

	}
}

Tuple not matched..

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