how to iterate over tuple items

Question

How to iterate over items in a Tuple, when I don't know at compile-time what are the types the Tuple is composed of? I just need an IEnumerable of objects (for serialization).

private static IEnumerable TupleToEnumerable(object tuple)
{
    Type t = tuple.GetType();
    if (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(Tuple<,>))
    {
        var x = tuple as Tuple<object, object>;
        yield return x.Item1;
        yield return x.Item2;
    }
}

Answer 1

You can access properties and their values by reflection with Type.GetProperties

var values = tuple.GetType().GetProperties().Select(p => p.GetValue(tuple));

So your method will be very simple Linq query

private static IEnumerable TupleToEnumerable(object tuple)
{
    // You can check if type of tuple is actually Tuple
    return tuple.GetType()
        .GetProperties()
        .Select(property => property.GetValue(tuple));
}