How to get First Element of the ValueTuple in C#?

ValueTuple is a structure introduced in C# 7.0 which represents the value type Tuple. It allows you to store a data set which contains multiple values that may or may not be related to each other. Item1 Property is used to get the first unnamed element of the given value tuple. It is applicable on every value tuple like 1-ValueTuple, 2-ValueTuple, and so on.

Syntax:

public T1 Item1;

Here, T1 is the field value of a ValueTuple<> structure. This ValueTuple<> can be 1-ValueTuple, or 2-ValueTuple, or 3-ValueTuple, or 4-ValueTuple, or 5-ValueTuple, or 6-ValueTuple, or 7-ValueTuple, or 8-ValueTuple.



Example: In the below code, you can see that we are accessing the first element of each value tuple.

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// C# program to illustrate how to get
// the first element of value tuple
using System;
  
class GFG {
  
    // Main Method
    static public void Main()
    {
  
        // Creating a value tuple with one element
        var ValTpl1 = ValueTuple.Create("Variables");
  
        Console.WriteLine("C# Topics: ");
  
        // Accessing the first element 
        // of 1-ValueTuple using the 
        // Item property
        Console.WriteLine(ValTpl1.Item1);
  
        // Creating a value tuple 
        // with two elements
        var ValTpl2 = ValueTuple.Create("Array",
                                      "String");
  
        // Accessing the first element of 
        // 2-ValueTuple using Item property
        Console.WriteLine(ValTpl2.Item1);
  
        // Creating a value tuple
        // with three elements
        var ValTpl3 = ValueTuple.Create("ArrayList",
                                   "List", "Queue");
  
        // Accessing the first element of 
        // 3-ValueTuple using Item property
        Console.WriteLine(ValTpl3.Item1);
  
        // Creating a value tuple 
        // with four elements
        var ValTpl4 = ValueTuple.Create("Stack", "Dictionary",
                                   "LinkedList", "Interface");
  
        // Accessing the first element of 
        // 4-ValueTuple using Item property
        Console.WriteLine(ValTpl4.Item1);
  
        // Creating a value tuple with five elements
        var ValTpl5 = ValueTuple.Create("Identifiers", "Data Types",
                       "Keywords", "Access Modifiers", "Operators");
  
        // Accessing the first element of 
        // 5-ValueTuple using Item property
        Console.WriteLine(ValTpl5.Item1);
  
        // Creating a value tuple with six elements
        var ValTpl6 = ValueTuple.Create("Nullable Types", "Class",
            "Structure", "Indexers", "Switch Statement", "Loops");
  
        // Accessing the first element of 
        // 6-ValueTuple using Item property
        Console.WriteLine(ValTpl6.Item1);
  
        // Creating a value tuple with seven elements
        var ValTpl7 = ValueTuple.Create("Inheritance ", "Constructors"
                        "Encapsulation", "Abstraction", "Static Class",
                                    "Partial Classes", "this keyword");
  
        // Accessing the first element of 
        // 7-ValueTuple using Item property
        Console.WriteLine(ValTpl7.Item1);
  
        // Creating a value tuple with eight elements
        var ValTpl8 = ValueTuple.Create("Methods", "Method Hiding",
                         "Optional Parameters", "Anonymous Method",
                  "Partial Methods", "Local Function", "Delegates",
                                                    "Destructors");
  
        // Accessing the first element of 
        // 8-ValueTuple using Item property
        Console.WriteLine(ValTpl8.Item1);
    }
}

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Output:

C# Topics: 
Variables
Array
ArrayList
Stack
Identifiers
Nullable Types
Inheritance 
Methods


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