Linq query on arrays of tuples

Question

(Type, int)[] Format1 = new[] {(typeof(Foo),1)};

(Type, int)[] Format2 = new[] { (typeof(Bar), 1),(typeof(Baz),1) };

IEnumerable<Type> allTypes() => //Foo,Bar,Baz

Can you help with:

how to temporarily union Format1 and Format2 in a quick way, so that...
we can extract the types out of the tuples and return them in allTypes()

Does this answer your question? [How to concatenate two IEnumerable into a new IEnumerable?](https://stackoverflow.com/questions/14164974/how-to-concatenate-two-ienumerablet-into-a-new-ienumerablet) — gunr2171, Feb 02 '22 at 21:10

score 1 · Accepted Answer · answered Feb 02 '22 at 21:11

1

IEnumerable<Type> allTypes() => Format1
    .Select(t => t.Item1)
    .Union(Format2.Select(t => t.Item1));

Union removes duplicates as desired, otherwise use Concat.

answered Feb 02 '22 at 21:11

Tim Schmelter

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Linq query on arrays of tuples

1 Answers1