C# | Tuple<T1,T2,T3,T4,T5,T6> Class

The Tuple<T1, T2, T3, T4, T5, T6> class is used to create a 6-tuple or sextuple. It represents a tuple which contains the six elements in it. You can instantiate a Tuple<T1, T2, T3, T4, T5, T6> object by calling either the Tuple<T1, T2, T3, T4, T5, T6>(T1, T2, T3, T4, T5, T6) constructor or by the static Tuple.Create method. You can retrieve the value of the tuple’s elements by using the read-only Item1, Item2, Item3, Item4, Item5, and Item6 instance property. 
Important Points:

• It implements IStructuralComparable, IStructuralEquatable, and IComparable interface.
• It defined under System namespace.
• It represent multiple data into a single data set.
• It allows us to create, manipulate, and access data set.
• 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.

Constructor

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Constructor	Description
Tuple<T1, T2, T3, T4, T5, T6>(T1, T2, T3, T4, T5, T6)	Initializes a new instance of the Tuple<T1, T2, T3, T4, T5, T6> class.

Property

Property	Description
Item1	Gets the value of the Tuple<T1, T2, T3, T4, T5, T6> object’s first component.
Item2	Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6> object’s second component.
Item3	Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6> object’s third component.
Item4	Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6> object’s fourth component.
Item5	Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6> object’s fifth component.
Item6	Gets the value of the current Tuple<T1, T2, T3, T4, T5, T6> object’s sixth component.

Example:

csharp

// C# program to illustrate the constructor
// and property of Tuple<T1, T2, T3, T4,
// T5, T6> Class
using System;

class GFG {

    // Main Method
    static public void Main () {

        // Creating 6-Tuple
        // Using Tuple<T1, T2, T3, T4, T5,
        // T6>(T1, T2, T3, T4, T5, T6) constructor
        Tuple<int, int, int, string, int, string>mytuple = new Tuple<int,
                      int, int, string, int, string>(79, 34, 67, "Geeks",
                                                    44, "GeeksforGeeks");

         // Accessing the values
        Console.WriteLine("Value of the First Component: " + mytuple.Item1);
        Console.WriteLine("Value of the Second Component: " + mytuple.Item2);
        Console.WriteLine("Value of the Third Component: " + mytuple.Item3);
        Console.WriteLine("Value of the Fourth Component: " + mytuple.Item4);
        Console.WriteLine("Value of the Fifth Component: " + mytuple.Item5);
        Console.WriteLine("Value of the Sixth Component: " + mytuple.Item6);

    }
}

Output:

Value of the First Component: 79
Value of the Second Component: 34
Value of the Third Component: 67
Value of the Fourth Component: Geeks
Value of the Fifth Component: 44
Value of the Sixth Component: GeeksforGeeks

Methods

Method	Description
Equals(Object)	Returns a value that indicates whether the current Tuple<T1, T2, T3, T4, T5, T6> object is equal to a specified object.
GetHashCode()	Returns the hash code for the current Tuple<T1, T2, T3, T4, T5, T6> 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, T4, T5, T6> instance.

Example:

CSharp

// C# program to check whether
// the given tuples are equal or not
using System;

class GFG {

    // Main method
    static public void Main()
    {

        // Creating 6-Tuple
        // Using Tuple<T1, T2, T3, T4, T5,
        // T6>(T1, T2, T3, T4, T5, T6) constructor
        Tuple<int, int, int, int, int, int> mytuple1 = new Tuple<int,
                    int, int, int, int, int>(20, 40, 90, 89, 33, 66);

        Tuple<int, int, int, int, int, int> mytuple2 = new Tuple<int,
                    int, int, int, int, int>(20, 40, 90, 89, 33, 66);

        // Using Equals method
        if (mytuple1.Equals(mytuple2))
        {
            Console.WriteLine("Tuple Matched.");
        }

        else {
            Console.WriteLine("Tuple not Matched.");
        }
    }
}

Output:

Tuple Matched.

Reference:

• https://docs.microsoft.com/en-us/dotnet/api/system.tuple-6?view=netframework-4.8