7 (seven) ways to define Tuple elements in c#

You can define the tuple elements in many ways. Here are the most effective 7 (seven) ways to define tuple elements in c#.

First: Define a tuple using the element type

Tuple elements can be defined directly by specifying the element type –

(string, int) personTuple = ("Nitish", 1);

To access the elements, we can use Item1 & Item2 field of the personTuple.

Console.WriteLine($"First element  - {personTuple.Item1}");
Console.WriteLine($"Second element - {personTuple.Item2}");

//output

First element  - Nitish
Second element - 1

Second: Define a tuple using the var keyword

We can define the tuple elements directly using the var keyword.

var personTuple = ("Nitish", 1);

To access the elements we can use Item1 & Item2 field.

Console.WriteLine($"First element  - {personTuple.Item1}");
Console.WriteLine($"Second element - {personTuple.Item2}");

//output

First element  - Nitish
Second element - 1

Third: Define a tuple by changing the default positional name

We can also specify a name to the tuple elements type.

(string name, int id) personTuple = ("Nitish", 1);

Now it is more meaningful to read the elements and we can access the elements using these new positional names.

Console.WriteLine($"First element  - {personTuple.name}");
Console.WriteLine($"Second element - {personTuple.id}");

//output

First element  - Nitish
Second element - 1

Fourth: Define a tuple using discrete Tuple variable –

While working with tuples in c#, there is no need to define the name for the tuple. We can define the tuple directly only with the elements name and type –

(string Name, int Id) = ("Nitish", 1);

You can access the tuple elements directly with the positional name.

Console.WriteLine($"First element  - {Name}");
Console.WriteLine($"Second element - {Id}");

//output

First element  - Nitish
Second element - 1

Fifth: Implicitly types variables using var

We can define a tuple in c# by writing the var keyword outside the parantheses.

var (Name, Id) = ("Nitish", 1);

Again, we can access the tuple elements directly by using the elements name.

Console.WriteLine($"First element  - {Name}");
Console.WriteLine($"Second element - {Id}");

//output

First element  - Nitish
Second element - 1

Sixth: Define a tuple by mixing the var keyword and element name

We can also combine the explicit type and the var keyword to define a tuple –

(string Name, var Id) = ("Nitish", 1);

We can us the tuple elements directly by using elements name.

Console.WriteLine($"First element  - {Name}");
Console.WriteLine($"Second element - {Id}");

//output

First element  - Nitish
Second element - 1

Seventh: Define a tuple using Tuple keyword –

A tuple can also be defined using Tuple class.

Tuple<string, int> personTuple= Tuple.Create("Nitish", 1);

Execution of tuple –

Console.WriteLine($"First element  - {personTuple.Item1}");
Console.WriteLine($"Second element - {personTuple.Item2}");

//output

First element  - Nitish
Second element - 1

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