Does C# 4's covariance support nesting of generics?
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by Scott Bilas
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Published on 2010-04-21T16:09:00Z
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2010/04/21
21:23 UTC
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I don't understand why 'x' below converts, but 'y' and 'z' do not.
var list = new List<List<int>>();
IEnumerable<List<int>> x = list;
List<IEnumerable<int>> y = list;
IEnumerable<IEnumerable<int>> z = list;
Does the new covariance feature simply not work on generics of generics or am I doing something wrong? (I'd like to avoid using .Cast<> to make y and z work.)
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