Return multiple values to a method caller

Question

I read the C++ version of this question but didn\'t really understand it.

Can someone please explain clearly if it can be done and how?

Answer 1

Some answers suggest using out parameters but I recommend not using this due to they don’t work with async methods. See this for more information.

Other answers stated using Tuple, which I would recommend too but using the new feature introduced in C# 7.0.

(string, string, string) LookupName(long id) // tuple return type
{
    ... // retrieve first, middle and last from data storage
    return (first, middle, last); // tuple literal
}

var names = LookupName(id);
WriteLine($"found {names.Item1} {names.Item3}.");

Further information can be found here.

Answer 2

you can try this "KeyValuePair"

private KeyValuePair<int, int> GetNumbers()
{
  return new KeyValuePair<int, int>(1, 2);
}


var numbers = GetNumbers();

Console.WriteLine("Output : {0}, {1}",numbers.Key, numbers.Value);

Output :

Output : 1, 2