Is there a way to name the fields when receiving a ValueTuple as a parameter?

Question

There is a method that receives a ValueTuple and returns it after modifying it. In this case, can I specify the field name of the ValueTuple in the method parameter?

private static void Operation()
{
    var tuple = (X: 10, Y: 20);
    var changeTuple = ChangeTuple(tuple);
}

private static ValueTuple<int, int> ChangeTuple(ValueTuple<int, int> tuple)
{
    tuple.Item1 = 100; // ex) tuple.X = 100;
    tuple.Item2 = 200; // ex) tuple.Y = 200;
    return tuple;
}

Answer 1

Yes, you can simply replace ValueTuple<int, int> to (int X, int Y):

private static (int X, int Y) ChangeTuple((int X, int Y) tuple)
{
    tuple.X = 100; 
    tuple.Y = 200; 
    return tuple;
}

For reference: naming tuple's fields

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Or you can use deconstruction:

private static (int X, int Y) ChangeTuple(ValueTuple<int, int> tuple)
{
    var (X, Y) = tuple;
    X = 100;
    Y = 200;
    return (X, Y);
}

---

Please note that in both cases you are not modifying the original ValueTuple rather create a new one:

• In the first case it is because the ValueTuple is a struct, so it is passed by value
• In the second case we explicitly create a new named ValueTuple