Question

In C# we can declare a list to store int, like

List myList = new List {1,1,2};

I want to store null values as well (nullable type) hence I want to create a list of nullable types. Something like this

        List<?int> myList = new List<int> {1,1,2};

Above code does not compile. Does .Net supports list of nullable types?

Atul Sureka

Answer 1

Sure, you need

List<int?> myList = new List<int?> {1,1,2};

1. It’s int? not ?int
2. You need the nullable int when you construct it as well as in the variable definition.

As a side note, you can’t actually declare a list like List myList = new List {1, 1, 2}; as there’s no non-generic List.